Wednesday, October 20, 2004
Sample Celebration Questions!!!! Practice!!!!
Sample Matter Properties Questions
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. Matter that has a definite volume and a definite shape is a ____.
a. gas b. liquid c. plasma d. solid
____ 2. Matter in which atoms are tightly held in place is a ____.
a. gas b. liquid c. plasma d. solid
____ 3. A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.
a. gas b. liquid c. plasma d. solid
____ 4. Matter with no definite volume and no definite shape is a ____.
a. gas b. liquid c. plasma d. solid
____ 5. Matter that has a definite volume but no definite shape is a ____.
a. gas b. liquid c. plasma d. solid
____ 6. Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a ____.
a. gas b. liquid c. plasma d. solid
____ 7. Most matter ____ when heated.
a. condenses b. contracts c. expands d. solidifies
____ 8. The theoretical point at which all molecular motion stops is called ____.
a. the boiling point b. absolute zero c. the melting point d. the frozen point
____ 9. The amount of energy needed to change a material from a solid to a liquid is called the heat of ____.
a. condensation b. evaporation c. fusion d. vaporization
____ 10. The amount of energy needed to change a material from a liquid to a gas is called the heat of ____.
a. condensation b. evaporation c. fusion d. vaporization
____ 11. As a sample of matter is heated, its particles ____.
a. are unaffected b. move more quickly c. move more slowly d. stop moving
____ 12. The most common state of matter in the universe is ____.
a. gas b. liquid c. plasma d. solid
____ 13. A ____ is NOT a mixture.
a. colloid b. compound c. suspension d. solution
____ 14. The scattering of light by colloids is called ____.
a. air pollution b. conservation c. suspension d. The Tyndall effect
Completion
Complete each sentence or statement.
15. In comparing plasma to a solid, a liquid, and a gas, plasma is most similar to ____________________.
16. The energy needed to change a liquid to a gas is the _________________________.
17. The energy needed to change a solid to a liquid is the _________________________.
18. Matter found in stars is in the ____________________ phase.
19. Solids that do not have a crystal form or definite melting point are called ____________________.
20. Matter is classified as ____________________ and mixtures.
21. A colloid is a ____________________ mixture.
Matching
Match each term with the correct definitions below.
a.
element
d.
compound
b.
mixture
e.
matter
c.
substance
____ 22. composition variable
____ 23. has mass, takes up space
____ 24. two or more elements combined
____ 25. all atoms the same
____ 26. composition definite
Sample Matter Properties Questions
Answer Section
MULTIPLE CHOICE
1. D
2. D
3. C
4. A
5. B
6. A
7. C
8. B
9. C
10. D
11. B
12. C
13. B
14. D
COMPLETION
15. a gas
16. heat of vaporization
17. heat of fusion
18. plasma
19. amorphous solids
20. substances
21. heterogeneous
MATCHING
22. B
23. E
24. D
25. A
26. C
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. Matter that has a definite volume and a definite shape is a ____.
a. gas b. liquid c. plasma d. solid
____ 2. Matter in which atoms are tightly held in place is a ____.
a. gas b. liquid c. plasma d. solid
____ 3. A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.
a. gas b. liquid c. plasma d. solid
____ 4. Matter with no definite volume and no definite shape is a ____.
a. gas b. liquid c. plasma d. solid
____ 5. Matter that has a definite volume but no definite shape is a ____.
a. gas b. liquid c. plasma d. solid
____ 6. Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a ____.
a. gas b. liquid c. plasma d. solid
____ 7. Most matter ____ when heated.
a. condenses b. contracts c. expands d. solidifies
____ 8. The theoretical point at which all molecular motion stops is called ____.
a. the boiling point b. absolute zero c. the melting point d. the frozen point
____ 9. The amount of energy needed to change a material from a solid to a liquid is called the heat of ____.
a. condensation b. evaporation c. fusion d. vaporization
____ 10. The amount of energy needed to change a material from a liquid to a gas is called the heat of ____.
a. condensation b. evaporation c. fusion d. vaporization
____ 11. As a sample of matter is heated, its particles ____.
a. are unaffected b. move more quickly c. move more slowly d. stop moving
____ 12. The most common state of matter in the universe is ____.
a. gas b. liquid c. plasma d. solid
____ 13. A ____ is NOT a mixture.
a. colloid b. compound c. suspension d. solution
____ 14. The scattering of light by colloids is called ____.
a. air pollution b. conservation c. suspension d. The Tyndall effect
Completion
Complete each sentence or statement.
15. In comparing plasma to a solid, a liquid, and a gas, plasma is most similar to ____________________.
16. The energy needed to change a liquid to a gas is the _________________________.
17. The energy needed to change a solid to a liquid is the _________________________.
18. Matter found in stars is in the ____________________ phase.
19. Solids that do not have a crystal form or definite melting point are called ____________________.
20. Matter is classified as ____________________ and mixtures.
21. A colloid is a ____________________ mixture.
Matching
Match each term with the correct definitions below.
a.
element
d.
compound
b.
mixture
e.
matter
c.
substance
____ 22. composition variable
____ 23. has mass, takes up space
____ 24. two or more elements combined
____ 25. all atoms the same
____ 26. composition definite
Sample Matter Properties Questions
Answer Section
MULTIPLE CHOICE
1. D
2. D
3. C
4. A
5. B
6. A
7. C
8. B
9. C
10. D
11. B
12. C
13. B
14. D
COMPLETION
15. a gas
16. heat of vaporization
17. heat of fusion
18. plasma
19. amorphous solids
20. substances
21. heterogeneous
MATCHING
22. B
23. E
24. D
25. A
26. C
Saturday, October 09, 2004
Physical Science Practice Questions Big "Celebration" (Exam)
Multiple Choice Practice:
Mr. Gibney gives you multiple choice in order to practice for the LEAP and GEE tests. The best way to answer multiple choice questions is to cover the answers to the question and to visualize the right answer in your mind. Then look for the right answer and cross out the wrong ones.
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. The prefix kilo- means ____.
a. 1,000 b. 100 c. 0.01 d. 0.001
____ 2. The prefix milli- means ____.
a. 1,000 b. 100 c. 0.01 d. 0.001
____ 3. How many meters are there in 1,865 cm?
a. 0.1865 b. 1.865 c. 18.65 d. 186.5
____ 4. A beaker contains 0.32 L of water. What is the volume of this water in milliliters?
a. 320 mL b. 3.2 mL c. 32 mL d. 0.32 mL
____ 5. When designing an experiment, the first step is to ____.
a. analyze the data b. list a procedure c. state a hypothesis d. state the problem
____ 6. A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested is the ____.
a. constant b. control c. dependent variable d. hypothesis
____ 7. A factor in an experiment that changes from the manipulation of the independent variable is the ____.
a. constant b. control c. dependent variable d. hypothesis
____ 8. A factor that does NOT change in an experiment is the ____.
a. constant b. control c. dependent variable d. hypothesis
____ 9. A factor that is manipulated in an experiment to change the dependent variable is the ____.
a. constant b. dependent variable c. control d. independent variable
____ 10. If you ride your bicycle down a straight road for 500 m then turn around and ride back, your distance is ____ your displacement.
a. greater than b. equal to c. less than d. can’t determine
____ 11. Motion is a change in ____.
a. time b. speed c. velocity d. position
____ 12. The speed you read on a speedometer is ____.
a. instantaneous speed b. constant speed c. average speed d. velocity
____ 13. 3 m/s north is an example of a(n) ____.
a. speed b. velocity c. position d. acceleration
____ 14. A merry-go-round horse moves at a constant speed but at a changing ____.
a. velocity b. balanced force c. inertia d. unbalanced force
____ 15. Acceleration is rate of change of ____.
a. position b. time c. velocity d. force
____ 16. Newton's first law of motion is also called the law of ____.
a. mass b. inertia c. force d. constant velocity
____ 17. The upward force on an object falling through the air is ____.
a. air resistance b. inertia c. momentum d. terminal velocity
____ 18. A feather will fall through the air more slowly than a brick because of ____.
a. air resistance b. gravity c. inertia d. momentum
____ 19. When an object moves in a circular path, it accelerates toward the center of the circle as a result of ____.
a. centripetal force b. frictional force c. gravitational force d. momentum
____ 20. As you get farther from the center of Earth, your weight will ____.
a. decrease b. increase c. remain the same d. can't tell from information given
____ 21. When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
a. action-reaction b. centripetal c. frictional d. gravitational
____ 22. A real car moving at 10 km/h has more momentum than a toy car moving at the same speed because the real car ____.
a. generates less friction b. has greater mass c. has less mass d. has greater forward motion
____ 23. The statement "to every action there is an equal and opposite reaction" is ____.
a. the law of conservation of momentum b. Newton's first law of motion c. Newton's second law of motion d. Newton's third law of motion
____ 24. A 300-N force acts on a 25-kg object. The acceleration of the object is ____.
a. 7,500 m/s2 b. 300 m/s2 c. 25 m/s2 d. 12 m/s2
____ 25. The kinetic energy of an object increases as its ____ increases.
a. gravitational energy b. potential energy c. specific heat d. velocity
____ 26. Increasing the speed of an object ____ its potential energy.
a. does not affect b. increases c. decreases d. changes
____ 27. You can calculate kinetic energy by using the equation ____.
a. KE (J) = m (kg) ´ 9.8 m/s2 ´ h (m) b. KE (J) = w (m) ´ h (m) c. KE (J) = 1/2 m (kg) ´ v2 (m2/s2) d. KE (J) = 9.8 m/s2 ´ 1/2 m (kg)
____ 28. You can calculate gravitational potential energy by using the equation ____.
a. GPE (J) = 1/2m (kg) ´ 1/2h (m) b. GPE (J) = m (kg) ´ 9.8 m/s2 ´ h (m) c. GPE (J) = h (m) ´ 9.8 m/s2 d. GPE (J) = 1/2h (m) ´ w (m)
____ 29. According to the law of conservation of energy, the total amount of energy in the universe ____.
a. remains constant b. changes constantly c. increases d. decreases
____ 30. Resistance is measured in a unit called the ____.
a. ampere b. coulomb c. ohm d. volt
____ 31. The statement that current is equal to the voltage difference divided by the resistance is known as ____.
a. Einstein's equation b. Faraday's law c. Newton's law d. Ohm's law
____ 32. A path that allows only one route for an electric current is called a ____.
a. parallel circuit b. parallel current c. series circuit d. series current
____ 33. Electric charge that has accumulated on an object is referred to as ____.
a. circuit electricity b. current circuit c. current electricity d. static electricity
____ 34. A circuit that has two or more branches for electrons to follow is a(n) ____.
a. circuit diagram b. electron circuit c. parallel circuit d. series circuit
____ 35. A material through which electrons do NOT easily flow is a(n) ____.
a. conductor b. fuse c. insulator d. transformer
____ 36. Lightning is ____.
a. a buildup of neutrons b. harmless c. a high-voltage electric current d. a large discharge of static electricity
____ 37. One source of constant electric current is a ____.
a. coulomb b. dry cell c. switch d. transformer
____ 38. Which of the following is a device designed to open an overloaded circuit and prevent overheating?
a. circuit breaker b. magnet c. resistor d. transformer
____ 39. When you squeeze together the coils of a spring and then release them, you are creating a ____ wave.
a. transverse b. compressional c. water d. seismic
____ 40. Water waves are ____.
a. transverse waves b. compressional waves c. seismic waves d. both a and b
____ 41. Seismic waves are ____ waves.
a. transverse b. compressional c. uniform d. both a and b
____ 42. Wave A carries more energy than wave B. Wave B has a smaller ____ than wave A.
a. frequency b. wavelength c. amplitude d. speed
____ 43. The energy a wave carries is measured by its ____.
a. wavelength b. frequency c. amplitude d. speed
____ 44. When light is reflected from a surface, as the angle of incidence increases, the angle of reflection ____.
a. increases b. decreases c. remains the same d. cannot be determined
____ 45. For the Doppler effect to occur, ____.
a. the sound source must be moving b. the listener must be moving c. both source and listener must be moving d. either source or listener must be moving
____ 46. Electromagnetic waves ____.
a. are compressional waves b. are transverse waves c. must have a medium d. are generated by static electricity
____ 47. The ____ is the particle that carries radiant energy.
a. proton b. photon c. neutron d. electron
____ 48. Electromagnetic radiation with the shortest wavelengths is ____.
a. gamma rays b. ultraviolet waves c. radio waves d. infrared waves
____ 49. The electromagnetic waves with wavelengths slightly longer than visible light are ____.
a. microwaves b. infrared waves c. ultraviolet waves d. X rays
____ 50. The frequency of purple light is ____ that of yellow light.
a. higher than b. lower than c. the same as d. faster than
____ 51. ____ are used for medical imaging.
a. Ultraviolet waves b. Infrared waves c. X rays d. Gamma rays
____ 52. Your body needs ____ to make vitamin D.
a. infrared waves b. microwaves c. visible light waves d. ultraviolet waves
Matching
Read the paragraph and then match each item with the correct statement below.
An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were cultured. Both populations had water with the same mineral content, were supplied with identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20ºC. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of population one had caffeine administered five minutes before their heartbeat was checked. The fleas of population two were given nothing.
a.
independent variable
c.
constant
b.
dependent variable
d.
control
____ 53. What part of the experiment was the food?
____ 54. What part of the experiment was the heartbeat?
____ 55. What part of the experiment was the water temperature?
____ 56. What part of the experiment was population two?
____ 57. What part of the experiment was the caffeine?
1st Sem Exam
Answer Section
MULTIPLE CHOICE
1. ANS: A
2. ANS: D
3. ANS: C
4. ANS: A
5. ANS: D
6. ANS: B
7. ANS: C
8. ANS: A
9. ANS: D
10. ANS: A
11. ANS: D
12. ANS: A
13. ANS: B
14. ANS: A
15. ANS: C
16. ANS: B
17. ANS: A
18. ANS: A
19. ANS: A
20. ANS: A
21. ANS: A
22. ANS: B
23. ANS: D
24. ANS: D
25. ANS: D
26. ANS: A
27. ANS: C
28. ANS: B
29. ANS: A
30. ANS: C
31. ANS: D
32. ANS: C
33. ANS: D
34. ANS: C
35. ANS: C
36. ANS: D
37. ANS: B
38. ANS: A
39. ANS: B
40. ANS: D
41. ANS: D
42. ANS: C
43. ANS: C
44. ANS: A
45. ANS: D
46. ANS: B
47. ANS: B
48. ANS: A
49. ANS: B
50. ANS: A
51. ANS: C
52. ANS: D
MATCHING
53. ANS: C
54. ANS: B
55. ANS: C
56. ANS: D
57. ANS: A
Mr. Gibney gives you multiple choice in order to practice for the LEAP and GEE tests. The best way to answer multiple choice questions is to cover the answers to the question and to visualize the right answer in your mind. Then look for the right answer and cross out the wrong ones.
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 1. The prefix kilo- means ____.
a. 1,000 b. 100 c. 0.01 d. 0.001
____ 2. The prefix milli- means ____.
a. 1,000 b. 100 c. 0.01 d. 0.001
____ 3. How many meters are there in 1,865 cm?
a. 0.1865 b. 1.865 c. 18.65 d. 186.5
____ 4. A beaker contains 0.32 L of water. What is the volume of this water in milliliters?
a. 320 mL b. 3.2 mL c. 32 mL d. 0.32 mL
____ 5. When designing an experiment, the first step is to ____.
a. analyze the data b. list a procedure c. state a hypothesis d. state the problem
____ 6. A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested is the ____.
a. constant b. control c. dependent variable d. hypothesis
____ 7. A factor in an experiment that changes from the manipulation of the independent variable is the ____.
a. constant b. control c. dependent variable d. hypothesis
____ 8. A factor that does NOT change in an experiment is the ____.
a. constant b. control c. dependent variable d. hypothesis
____ 9. A factor that is manipulated in an experiment to change the dependent variable is the ____.
a. constant b. dependent variable c. control d. independent variable
____ 10. If you ride your bicycle down a straight road for 500 m then turn around and ride back, your distance is ____ your displacement.
a. greater than b. equal to c. less than d. can’t determine
____ 11. Motion is a change in ____.
a. time b. speed c. velocity d. position
____ 12. The speed you read on a speedometer is ____.
a. instantaneous speed b. constant speed c. average speed d. velocity
____ 13. 3 m/s north is an example of a(n) ____.
a. speed b. velocity c. position d. acceleration
____ 14. A merry-go-round horse moves at a constant speed but at a changing ____.
a. velocity b. balanced force c. inertia d. unbalanced force
____ 15. Acceleration is rate of change of ____.
a. position b. time c. velocity d. force
____ 16. Newton's first law of motion is also called the law of ____.
a. mass b. inertia c. force d. constant velocity
____ 17. The upward force on an object falling through the air is ____.
a. air resistance b. inertia c. momentum d. terminal velocity
____ 18. A feather will fall through the air more slowly than a brick because of ____.
a. air resistance b. gravity c. inertia d. momentum
____ 19. When an object moves in a circular path, it accelerates toward the center of the circle as a result of ____.
a. centripetal force b. frictional force c. gravitational force d. momentum
____ 20. As you get farther from the center of Earth, your weight will ____.
a. decrease b. increase c. remain the same d. can't tell from information given
____ 21. When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
a. action-reaction b. centripetal c. frictional d. gravitational
____ 22. A real car moving at 10 km/h has more momentum than a toy car moving at the same speed because the real car ____.
a. generates less friction b. has greater mass c. has less mass d. has greater forward motion
____ 23. The statement "to every action there is an equal and opposite reaction" is ____.
a. the law of conservation of momentum b. Newton's first law of motion c. Newton's second law of motion d. Newton's third law of motion
____ 24. A 300-N force acts on a 25-kg object. The acceleration of the object is ____.
a. 7,500 m/s2 b. 300 m/s2 c. 25 m/s2 d. 12 m/s2
____ 25. The kinetic energy of an object increases as its ____ increases.
a. gravitational energy b. potential energy c. specific heat d. velocity
____ 26. Increasing the speed of an object ____ its potential energy.
a. does not affect b. increases c. decreases d. changes
____ 27. You can calculate kinetic energy by using the equation ____.
a. KE (J) = m (kg) ´ 9.8 m/s2 ´ h (m) b. KE (J) = w (m) ´ h (m) c. KE (J) = 1/2 m (kg) ´ v2 (m2/s2) d. KE (J) = 9.8 m/s2 ´ 1/2 m (kg)
____ 28. You can calculate gravitational potential energy by using the equation ____.
a. GPE (J) = 1/2m (kg) ´ 1/2h (m) b. GPE (J) = m (kg) ´ 9.8 m/s2 ´ h (m) c. GPE (J) = h (m) ´ 9.8 m/s2 d. GPE (J) = 1/2h (m) ´ w (m)
____ 29. According to the law of conservation of energy, the total amount of energy in the universe ____.
a. remains constant b. changes constantly c. increases d. decreases
____ 30. Resistance is measured in a unit called the ____.
a. ampere b. coulomb c. ohm d. volt
____ 31. The statement that current is equal to the voltage difference divided by the resistance is known as ____.
a. Einstein's equation b. Faraday's law c. Newton's law d. Ohm's law
____ 32. A path that allows only one route for an electric current is called a ____.
a. parallel circuit b. parallel current c. series circuit d. series current
____ 33. Electric charge that has accumulated on an object is referred to as ____.
a. circuit electricity b. current circuit c. current electricity d. static electricity
____ 34. A circuit that has two or more branches for electrons to follow is a(n) ____.
a. circuit diagram b. electron circuit c. parallel circuit d. series circuit
____ 35. A material through which electrons do NOT easily flow is a(n) ____.
a. conductor b. fuse c. insulator d. transformer
____ 36. Lightning is ____.
a. a buildup of neutrons b. harmless c. a high-voltage electric current d. a large discharge of static electricity
____ 37. One source of constant electric current is a ____.
a. coulomb b. dry cell c. switch d. transformer
____ 38. Which of the following is a device designed to open an overloaded circuit and prevent overheating?
a. circuit breaker b. magnet c. resistor d. transformer
____ 39. When you squeeze together the coils of a spring and then release them, you are creating a ____ wave.
a. transverse b. compressional c. water d. seismic
____ 40. Water waves are ____.
a. transverse waves b. compressional waves c. seismic waves d. both a and b
____ 41. Seismic waves are ____ waves.
a. transverse b. compressional c. uniform d. both a and b
____ 42. Wave A carries more energy than wave B. Wave B has a smaller ____ than wave A.
a. frequency b. wavelength c. amplitude d. speed
____ 43. The energy a wave carries is measured by its ____.
a. wavelength b. frequency c. amplitude d. speed
____ 44. When light is reflected from a surface, as the angle of incidence increases, the angle of reflection ____.
a. increases b. decreases c. remains the same d. cannot be determined
____ 45. For the Doppler effect to occur, ____.
a. the sound source must be moving b. the listener must be moving c. both source and listener must be moving d. either source or listener must be moving
____ 46. Electromagnetic waves ____.
a. are compressional waves b. are transverse waves c. must have a medium d. are generated by static electricity
____ 47. The ____ is the particle that carries radiant energy.
a. proton b. photon c. neutron d. electron
____ 48. Electromagnetic radiation with the shortest wavelengths is ____.
a. gamma rays b. ultraviolet waves c. radio waves d. infrared waves
____ 49. The electromagnetic waves with wavelengths slightly longer than visible light are ____.
a. microwaves b. infrared waves c. ultraviolet waves d. X rays
____ 50. The frequency of purple light is ____ that of yellow light.
a. higher than b. lower than c. the same as d. faster than
____ 51. ____ are used for medical imaging.
a. Ultraviolet waves b. Infrared waves c. X rays d. Gamma rays
____ 52. Your body needs ____ to make vitamin D.
a. infrared waves b. microwaves c. visible light waves d. ultraviolet waves
Matching
Read the paragraph and then match each item with the correct statement below.
An experiment was designed to investigate the effect of caffeine on the heartbeat of water fleas. Two populations of water fleas were cultured. Both populations had water with the same mineral content, were supplied with identical amounts of bacteria as food, received the same amount of light, and had their temperature maintained at 20ºC. Every two hours, water fleas from both populations were selected and their heartbeats were monitored. The fleas of population one had caffeine administered five minutes before their heartbeat was checked. The fleas of population two were given nothing.
a.
independent variable
c.
constant
b.
dependent variable
d.
control
____ 53. What part of the experiment was the food?
____ 54. What part of the experiment was the heartbeat?
____ 55. What part of the experiment was the water temperature?
____ 56. What part of the experiment was population two?
____ 57. What part of the experiment was the caffeine?
1st Sem Exam
Answer Section
MULTIPLE CHOICE
1. ANS: A
2. ANS: D
3. ANS: C
4. ANS: A
5. ANS: D
6. ANS: B
7. ANS: C
8. ANS: A
9. ANS: D
10. ANS: A
11. ANS: D
12. ANS: A
13. ANS: B
14. ANS: A
15. ANS: C
16. ANS: B
17. ANS: A
18. ANS: A
19. ANS: A
20. ANS: A
21. ANS: A
22. ANS: B
23. ANS: D
24. ANS: D
25. ANS: D
26. ANS: A
27. ANS: C
28. ANS: B
29. ANS: A
30. ANS: C
31. ANS: D
32. ANS: C
33. ANS: D
34. ANS: C
35. ANS: C
36. ANS: D
37. ANS: B
38. ANS: A
39. ANS: B
40. ANS: D
41. ANS: D
42. ANS: C
43. ANS: C
44. ANS: A
45. ANS: D
46. ANS: B
47. ANS: B
48. ANS: A
49. ANS: B
50. ANS: A
51. ANS: C
52. ANS: D
MATCHING
53. ANS: C
54. ANS: B
55. ANS: C
56. ANS: D
57. ANS: A
Practice Questions for First Big "Celebration" (Exam)
Phys Sci Practice Questions for 1st Exam: Working through these problems is an excellent way to study. Use your book and notes for answers (answers are also given at the bottom)
Short Answer:
1. Arrange each of the following in order from largest to smallest.
1. centimeter
2. kilometers
3. meters
4. micrometers
5. millimeters
2. Two cars start at the same point and drive in a straight line for 5 km. At the end of the drive their distances are the same but their displacements are different. Explain.
3. Two cars are traveling along the same road at the same speed but at different velocities. Explain.
4. A car is driving down a road. Is it possible for its position to be changing and its acceleration to be zero? Is it possible for its velocity to be changing and its acceleration to be zero?
5. A car has an acceleration of –5 m/s2. Describe the car’s motion.
6. If two equal forces act on an object in opposite directions, what is the net force? What is the acceleration?
7. Why is it necessary to wear a seat belt to hold you in place if you are riding in a car that stops suddenly?
8. Sally sits on a rock. Her weight is an action force. Describe its reaction force.
9. Explain how mass and weight are different from each other.
10. Why is your weight less on the Moon than on Earth, but your mass is the same?
11. Which body processes are fueled by chemical potential energy?
12. Is it possible for a ball to have both kinetic energy and potential energy at the same time? Explain.
13. Explain the changes in energy when a child slides down a sliding board.
14. How does the child's ride on the slide change if the slide is lubricated with water to make it slippery?
15. A dump truck, a sports car, and a bicycle are traveling at the same velocity. Compare their kinetic energies.
16. Describe how you could quickly determine whether a string of lights is wired in series or in parallel.
17. List two materials that are conductors and two materials that are insulators.
18. How is the amplitude of a compressional wave determined?
19. You shake the end of a rope to make a wave. You start shaking the rope a greater distance but at the same speed. How are the wavelength, frequency, amplitude, and speed affected?
Problems
20. A cross-country runner runs 10 km in 40 minutes. What is his average speed?
21. A high speed train travels with an average speed of 227 km/h. The train travels for 2 h. How far does the train travel?
22. Find the acceleration of a car that goes from 32 m/s to 96 m/s in 8.0 s.
23. A 10-kg wagon has a speed of 25 m/s. What is its momentum?
24. Calculate the force on an object that has a mass of 12 kg and an acceleration of 4 m/s2.
25. An 18-kg bicycle carrying a 62-kg girl is traveling at a speed of 7 m/s. What is the kinetic energy of the girl and bicycle?
26. A 70-kg boy is sitting 3 m from the ground in a tree. What is his gravitational potential energy?
27. A 90-kg ceiling light is suspended 4 m above the floor. What is its gravitational potential energy?
Phys Sci Question
Answer Section
SHORT ANSWER
1. ANS:
2, 3, 1, 5, 4
2. ANS:
The two cars drove in different directions.
3. ANS:
The two cars are traveling in different directions.
4. ANS:
Yes, it could have constant speed. No, a change in velocity is always an acceleration.
5. ANS:
The car is slowing down at the rate of 5 m/s every second.
6. ANS:
0, 0
7. ANS:
A seat belt helps to minimize injury from the inertia that keeps your body moving forward.
8. ANS:
The rock supplies an upward reaction force on Sally equal to her weight.
9. ANS:
Mass measures the amount of matter; weight measures the force of gravity on the matter.
10. ANS:
Your mass is the same because you didn't change the amount of matter, but the gravitational force decreased, decreasing your weight.
11. ANS:
heartbeat, digestion, warmth, movement
12. ANS:
a ball on a desk has potential energy; as it falls, it has both potential energy and kinetic energy
13. ANS:
At the top, he has 100% potential energy. As he slides, potential energy changes to kinetic energy and thermal energy because of friction. At the bottom of the slide his energy has transformed entirely into kinetic energy and thermal energy.
14. ANS:
Friction is decreased so more potential energy changes to kinetic energy without being lost to thermal energy. The child's ride is faster.
15. ANS:
Kinetic energy is based on mass and velocity. Given equal velocity, the dump truck has the most mass, so it has the most kinetic energy. The sports car would be next, and the bicycle last.
16. ANS:
Remove one bulb. If it's a series, all the lights will go out; if it's parallel, the remaining lights will stay lit.
17. ANS:
conductors: metals, copper, silver; insulators: plastic, wood, rubber, glass
18. ANS:
It is determined by the density of the medium at the compressions.
19. ANS:
wavelength, frequency, and speed remain the same; amplitude increases
PROBLEM
20. ANS:
s = d/t = 10 km/40 min = 0.25 km/min
21. ANS:
d = s ´ y = 227 km/h ´ (2.00 h) = 454 km
22. ANS:
vf – vi/t = (96 m/s – 32 m/s)/ 8.0 s = 8.0 m/s2
23. ANS:
250 kg ´ m/s
p = mv = 10 kg ´ 25 m/s = 250 kg ´ m/s
24. ANS:
48 N
F = ma = 12 kg ´ 4 m/s2 = 48 kg ´ m/s2 = 48 N
25. ANS:
1/2 mv2 = 1/2 (18 + 62)(7)2 = 1,960 J
26. ANS:
(m)(9.8)(h) = (70)(9.8)(3) = 2,058 J
27. ANS:
(m)(9.8)(h) = (90)(9.8)(4) = 3,528 J
Short Answer:
1. Arrange each of the following in order from largest to smallest.
1. centimeter
2. kilometers
3. meters
4. micrometers
5. millimeters
2. Two cars start at the same point and drive in a straight line for 5 km. At the end of the drive their distances are the same but their displacements are different. Explain.
3. Two cars are traveling along the same road at the same speed but at different velocities. Explain.
4. A car is driving down a road. Is it possible for its position to be changing and its acceleration to be zero? Is it possible for its velocity to be changing and its acceleration to be zero?
5. A car has an acceleration of –5 m/s2. Describe the car’s motion.
6. If two equal forces act on an object in opposite directions, what is the net force? What is the acceleration?
7. Why is it necessary to wear a seat belt to hold you in place if you are riding in a car that stops suddenly?
8. Sally sits on a rock. Her weight is an action force. Describe its reaction force.
9. Explain how mass and weight are different from each other.
10. Why is your weight less on the Moon than on Earth, but your mass is the same?
11. Which body processes are fueled by chemical potential energy?
12. Is it possible for a ball to have both kinetic energy and potential energy at the same time? Explain.
13. Explain the changes in energy when a child slides down a sliding board.
14. How does the child's ride on the slide change if the slide is lubricated with water to make it slippery?
15. A dump truck, a sports car, and a bicycle are traveling at the same velocity. Compare their kinetic energies.
16. Describe how you could quickly determine whether a string of lights is wired in series or in parallel.
17. List two materials that are conductors and two materials that are insulators.
18. How is the amplitude of a compressional wave determined?
19. You shake the end of a rope to make a wave. You start shaking the rope a greater distance but at the same speed. How are the wavelength, frequency, amplitude, and speed affected?
Problems
20. A cross-country runner runs 10 km in 40 minutes. What is his average speed?
21. A high speed train travels with an average speed of 227 km/h. The train travels for 2 h. How far does the train travel?
22. Find the acceleration of a car that goes from 32 m/s to 96 m/s in 8.0 s.
23. A 10-kg wagon has a speed of 25 m/s. What is its momentum?
24. Calculate the force on an object that has a mass of 12 kg and an acceleration of 4 m/s2.
25. An 18-kg bicycle carrying a 62-kg girl is traveling at a speed of 7 m/s. What is the kinetic energy of the girl and bicycle?
26. A 70-kg boy is sitting 3 m from the ground in a tree. What is his gravitational potential energy?
27. A 90-kg ceiling light is suspended 4 m above the floor. What is its gravitational potential energy?
Phys Sci Question
Answer Section
SHORT ANSWER
1. ANS:
2, 3, 1, 5, 4
2. ANS:
The two cars drove in different directions.
3. ANS:
The two cars are traveling in different directions.
4. ANS:
Yes, it could have constant speed. No, a change in velocity is always an acceleration.
5. ANS:
The car is slowing down at the rate of 5 m/s every second.
6. ANS:
0, 0
7. ANS:
A seat belt helps to minimize injury from the inertia that keeps your body moving forward.
8. ANS:
The rock supplies an upward reaction force on Sally equal to her weight.
9. ANS:
Mass measures the amount of matter; weight measures the force of gravity on the matter.
10. ANS:
Your mass is the same because you didn't change the amount of matter, but the gravitational force decreased, decreasing your weight.
11. ANS:
heartbeat, digestion, warmth, movement
12. ANS:
a ball on a desk has potential energy; as it falls, it has both potential energy and kinetic energy
13. ANS:
At the top, he has 100% potential energy. As he slides, potential energy changes to kinetic energy and thermal energy because of friction. At the bottom of the slide his energy has transformed entirely into kinetic energy and thermal energy.
14. ANS:
Friction is decreased so more potential energy changes to kinetic energy without being lost to thermal energy. The child's ride is faster.
15. ANS:
Kinetic energy is based on mass and velocity. Given equal velocity, the dump truck has the most mass, so it has the most kinetic energy. The sports car would be next, and the bicycle last.
16. ANS:
Remove one bulb. If it's a series, all the lights will go out; if it's parallel, the remaining lights will stay lit.
17. ANS:
conductors: metals, copper, silver; insulators: plastic, wood, rubber, glass
18. ANS:
It is determined by the density of the medium at the compressions.
19. ANS:
wavelength, frequency, and speed remain the same; amplitude increases
PROBLEM
20. ANS:
s = d/t = 10 km/40 min = 0.25 km/min
21. ANS:
d = s ´ y = 227 km/h ´ (2.00 h) = 454 km
22. ANS:
vf – vi/t = (96 m/s – 32 m/s)/ 8.0 s = 8.0 m/s2
23. ANS:
250 kg ´ m/s
p = mv = 10 kg ´ 25 m/s = 250 kg ´ m/s
24. ANS:
48 N
F = ma = 12 kg ´ 4 m/s2 = 48 kg ´ m/s2 = 48 N
25. ANS:
1/2 mv2 = 1/2 (18 + 62)(7)2 = 1,960 J
26. ANS:
(m)(9.8)(h) = (70)(9.8)(3) = 2,058 J
27. ANS:
(m)(9.8)(h) = (90)(9.8)(4) = 3,528 J
Saturday, October 02, 2004
Project 3: Boring Paper
-Your task is to write a 5 page paper about a Scientist involved with a concept we have learned this year. You must pre-approve your scientist with Mr. Gibney.
This project will require the following:
-5 pages of written research that cover: life of scientist, contribution to science, legacy of scientist
-Bibliography showing 5 resources you accessed to research the scientist
-Oral Presentation of Paper (2 mins or less to show your hard work to your classmates)
-Your task is to write a 5 page paper about a Scientist involved with a concept we have learned this year. You must pre-approve your scientist with Mr. Gibney.
This project will require the following:
-5 pages of written research that cover: life of scientist, contribution to science, legacy of scientist
-Bibliography showing 5 resources you accessed to research the scientist
-Oral Presentation of Paper (2 mins or less to show your hard work to your classmates)
Project 2: The Ultimate Science Song!!!!
-Your task as a hip-hop scientist is to create a song about a major concept we have studied. Topics include: Newtons Laws, scientific method (cannot repeat the Nelly Song), or Energy.
-Newtons Laws: song must identify all 3 of Newtons Laws and an example of each
-Scientific Method: song must correctly state the method
-Energy: song must identify the different types of energy and an example of each
This project will require the following:
-Background Music: you must bring in appropriate background music (Mr. Gibney has a CD player)
-Typed Lyrics for the Class (must be given to Mr. Gibney in advance so he can run copies)
-A typed summary of the concept you are presenting (not in song form) which must be at least 1 page
-Your task as a hip-hop scientist is to create a song about a major concept we have studied. Topics include: Newtons Laws, scientific method (cannot repeat the Nelly Song), or Energy.
-Newtons Laws: song must identify all 3 of Newtons Laws and an example of each
-Scientific Method: song must correctly state the method
-Energy: song must identify the different types of energy and an example of each
This project will require the following:
-Background Music: you must bring in appropriate background music (Mr. Gibney has a CD player)
-Typed Lyrics for the Class (must be given to Mr. Gibney in advance so he can run copies)
-A typed summary of the concept you are presenting (not in song form) which must be at least 1 page
Project 1: The Incredible Thrill Ride Project!!!!`
-Your task as a super scientist is to create a model of an exciting new roller coaster using Newtons laws.
This project will require you to turn in the following:
-Physical Roller Coaster Model: at least 1 foot long and composed of 2 different materials
-1 page typed report about Newtons laws, kinetic/potential energy, and friction in your roller coaster -Oral Presentation of Project (2 mins or less to show your hard work to your classmates)
-Your task as a super scientist is to create a model of an exciting new roller coaster using Newtons laws.
This project will require you to turn in the following:
-Physical Roller Coaster Model: at least 1 foot long and composed of 2 different materials
-1 page typed report about Newtons laws, kinetic/potential energy, and friction in your roller coaster -Oral Presentation of Project (2 mins or less to show your hard work to your classmates)
Project Your Choice: The Incredible Powerpoint Project!!!!`
-Your task as a super scientist is to create a powerpiont of a concept we learned in class.
This project will require you to turn in the following:
-Powerpoint on CD-Rom or email to jgibney@stjohn.k12.la.us
-1 page typed report about how your powerpoint teaches us a class concept -Oral Presentation of Powerpoint (3 minutes or less Minimum of 3 slides)
-Your task as a super scientist is to create a powerpiont of a concept we learned in class.
This project will require you to turn in the following:
-Powerpoint on CD-Rom or email to jgibney@stjohn.k12.la.us
-1 page typed report about how your powerpoint teaches us a class concept -Oral Presentation of Powerpoint (3 minutes or less Minimum of 3 slides)
