Download TEST-Chapters 2-4-Clayton Answer Section

TEST-Chapters 2-4-Clayton
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. 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
c. less than
b. equal to
d. can’t determine
____
2. Motion is a change in ____.
a. time
b. speed
c. velocity
d. position
____
3. The speed you read on a speedometer is ____.
a. instantaneous speed
c. average speed
b. constant speed
d. velocity
____
4. 3 m/s north is an example of a(n) ____.
a. speed
b. velocity
c. position
d. acceleration
____
5. A single point on a distance-time graph tells the ____.
a. instantaneous speed
c. constant speed
b. average speed
d. average velocity
____
6. Acceleration is rate of change of ____.
a. position
b. time
c. velocity
d. force
____
7. If you ride your bike up a hill, then ride down the other side, your acceleration is ____.
a. all positive
c. first positive, then negative
b. all negative
d. first negative, then positive
____
8. A horizontal line on a velocity/time graph shows ____ acceleration.
a. positive
c. changing
b. negative
d. zero
____
9. Inertia varies depending on ____.
a. force
b. mass
c. velocity
d. motion
____ 10. Newton's first law of motion is also called the law of ____.
a. mass
c. force
b. inertia
d. constant velocity
____ 11. The upward force on an object falling through the air is ____.
a. air resistance
c. momentum
b. inertia
d. terminal velocity
____ 12. The relationship among mass, force, and acceleration is explained by ____.
a. conservation of momentum
c. Newton's second law of motion
b. Newton's first law of motion
d. Newton's third law of motion
____ 13. The acceleration due to gravity is ____.
a. 98 m/s2
b. 9.8 m/s2
c. 9.8 m/s
d. 0.98 m/s
____ 14. According to Newton's second law of motion, ____.
a. F = m a
c. F = p a
b. F = m v
d. F = p v
____ 15. For any object, the greater the force that's applied to it, the greater its ____ will be.
a. acceleration
c. inertia
b. gravity
d. velocity
____ 16. 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
c. frictional
b. centripetal
d. gravitational
____ 17. 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
c. has less mass
b. has greater mass
d. has greater forward motion
____ 18. In the equation p = m v, the p represents ____.
a. friction
c. momentum
b. inertia
d. position
____ 19. 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
____ 20. A 300-N force acts on a 25-kg object. The acceleration of the object is ____.
a. 7,500 m/s2
c. 25 m/s2
2
b. 300 m/s
d. 12 m/s2
____ 21. A 3,000-N force acts on a 200-kg object. The acceleration of the object is ____.
a. 50 m/s2
c. 15 m/s2
2
b. 26 m/s
d. 150 m/s2
____ 22. The kinetic energy of an object increases as its ____ increases.
a. gravitational energy
c. specific heat
b. potential energy
d. velocity
____ 23. Increasing the speed of an object ____ its potential energy.
a. does not affect
c. decreases
b. increases
d. changes
____ 24. The SI unit for energy is the ____.
a. calorie
b. joule
c. meter per second
d. kilogram
____ 25. 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)
____ 26. You can calculate gravitational potential energy by using the equation ____.
a. GPE (J) = 1/2m (kg)  1/2h (m)
c. GPE (J) = h (m)  9.8 m/s2
b. GPE (J) = m (kg)  9.8 m/s2  h (m)
d. GPE (J) = 1/2h (m)  w (m)
____ 27. Which of the following devices does not make use of electrical energy?
a. upright piano
c. toaster
b. radio
d. digital camera
____ 28. A bus engine transfers chemical potential energy into ____ so that the bus moves.
a. thermal energy
c. electrical energy
b. gravitational potential energy
d. kinetic energy
____ 29. According to the law of conservation of energy, the total amount of energy in the universe ____.
a. remains constant
c. increases
b. changes constantly
d. decreases
____ 30. ____________________ is a measure of how far an object has moved.
a. Distance
b. Displacement
c. Measurement
d. Velocity
____ 31. The speed and direction with which an object moves is its ____________________.
a. acceleration
c. velocity
b. speed
d. distance
____ 32. The distance an object travels per unit of time is ____________________.
a. meters
c. displacement
b. speed
d. acceleration
____ 33. An object changing its speed from 10 m/s to 3 m/s is undergoing ____________________ acceleration.
a. zero
c. constant
b. positive
d. negative
____ 34. Stored energy is called ____________________ energy.
a. hidden
c. kinetic
b. potential
d. thermal
____ 35. If an object has energy, this means that the object has the ability to cause ____________________.
a. change
c. movement
b. problems
d. sound
____ 36. A fire warms you by transferring ____________________ energy.
a. mechanical
c. kinetic
b. potential
d. thermal
____ 37. According to the law of conservation of energy, energy can change ____________________, but it cannot be
created or destroyed under ordinary conditions.
a. places
c. forms
b. amounts
d. none of the above
____ 38. If two equal forces act on an object in opposite directions, what is the net force? What is the acceleration?
a. depends on the amounts of each force
b. need more information
c. both are zero
d. both are -2
____ 39. A cross-country runner runs 10 km in 40 minutes. What is his average speed?
a. 400 km / min
c. 0.25 km / min
b. 4 km / min
d. 40,000 km / min
____ 40. 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?
a. 113.5 km / h
c. 229 km / h
b. 454 km / h
d. 0.008 km / h
____ 41. Find the acceleration of a car that goes from 32 m/s to 96 m/s in 8.0 s.
a. 8 m / s2
c. 512 m / s2
2
b. - 8 m / s
d. 8 m / s west
____ 42. Calculate the force on an object that has a mass of 12 kg and an acceleration of 4 m/s2.
a. 3 N
c. 0.33 N
b. 96 N
d. 48 N
____ 43. A 20-kg bicycle carrying a 58-kg girl is traveling at a speed of 8 m/s. What is the kinetic energy of the girl
and bicycle?
a. 1,856 J
c. 4,992 J
b. 312 J
d. 2,496 J
____ 44. A 70-kg boy is sitting 3 m from the ground in a tree. What is his gravitational potential energy?
a. 2,058 J
c. 315 J
b. 210 J
d. 686 J
____ 45. A 75N ceiling light is suspended 8 m above the floor. What is its gravitational potential energy?
a. 4,800 J
c. 5,880 J
b. 600 J
d. 2,080 J
True/False
Indicate whether the statement is true or false.
A = TRUE
B = FALSE
____ 46. Energy doesn't have to involve motion.
____ 47. When you ride a playground swing, your potential energy is greatest at the highest point.
____ 48. As mass decreases, kinetic energy increases.
____ 49. In a car engine, burning fuel produces heat, which causes gases to expand, producing kinetic energy.
____ 50. The sum of potential and kinetic energy in a system is called the total energy.
TEST-Chapters 2-4-Clayton
Answer Section
MULTIPLE CHOICE
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A
PTS:
B2(5-8) | B4(9-12)
D
PTS:
B2(5-8) | B4(9-12)
A
PTS:
B2(5-8) | B4(9-12)
B
PTS:
B2(5-8) | B4(9-12)
A
PTS:
B2(5-8) | B4(9-12)
C
PTS:
B2(5-8) | B4(9-12)
D
PTS:
B2(5-8) | B4(9-12)
D
PTS:
B2(5-8) | B4(9-12)
B
PTS:
B2(5-8) | B4(9-12)
B
PTS:
B2(5-8) | B4(9-12)
A
PTS:
B2(5-8) | B4(9-12)
C
PTS:
B2(5-8) | B4(9-12)
B
PTS:
B2(5-8) | B4(9-12)
A
PTS:
B2(5-8) | B4(9-12)
A
PTS:
B2(5-8) | B4(9-12)
A
PTS:
B2(5-8) | B4(9-12)
B
PTS:
B2(5-8) | B4(9-12)
C
PTS:
B2(5-8) | B4(9-12)
D
PTS:
B2(5-8) | B4(9-12)
D
PTS:
B2(5-8) | B4(9-12)
C
PTS:
B2(5-8) | B4(9-12)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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B
OBJ: 1/1
PS-M-B1
B
OBJ: 1/1
PS-M-B1
B
OBJ: 2/1
SI-M-A3 | SI-M-A7 | PS-M-B1
B
OBJ: 2/1
SI-M-A3 | SI-M-A7 | PS-M-B1
B
OBJ: 3/1
SI-M-A3 | SI-M-A4 | PS-M-B1
B
OBJ: 4/2
SI-M-A3 | SI-M-A4 | PS-M-B5
B
OBJ: 5/2
SI-M-A4 | SI-M-A7 | PS-M-B1
B
OBJ: 6/3
SI-M-A7 | PS-M-B1 | PS-M-B5
B
OBJ: 8/3
SI-M-A7 | PS-M-B1 | PS-M-B3
B
OBJ: 8/3
SI-M-A7 | PS-M-B1 | PS-M-B3
B
OBJ: 3/1
SI-M-A1 | SI-M-A3 | PS-M-B2
B
OBJ: 1/1
SI-M-A4 | SI-M-A7 | PS-M-B3
B
OBJ: 4/2
SI-M-A7 | PS-M-B2
B
OBJ: 4/1
SI-M-A7 | PS-M-B2
B
OBJ: 1/1
SI-M-A4 | SI-M-A7 | PS-M-B3
B
OBJ: 8/3
SI-M-A5 | PS-M-B4 | PS-M-B5
B
OBJ: 9/3
SI-M-A3 | PS-M-B1
B
OBJ: 9/3
SI-M-A3 | PS-M-B1
B
OBJ: 8/3
SI-M-A5 | PS-M-B4 | PS-M-B5
A
OBJ: 1/1
SI-M-A4 | SI-M-A7 | PS-M-B3
A
OBJ: 1/1
SI-M-A4 | SI-M-A7 | PS-M-B3
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D
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
A
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
B
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
C
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
B
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
A
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
D
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
A
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
A
PTS: 1
C
PTS: 1
B
PTS: 1
D
PTS: 1
B
PTS: 1
A
PTS: 1
D
PTS: 1
C
PTS: 1
C
PTS: 1
C
PTS: 1
B
PTS: 1
A
PTS: 1
D
PTS: 1
D
PTS: 1
A
PTS: 1
B
PTS: 1
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B
OBJ: 1/1
PS-M-C1 | PS-M-C2
B
OBJ: 1/1
PS-M-C1 | PS-M-C2
B
OBJ: 1/1
PS-M-C1 | PS-M-C2
B
OBJ: 1/1
PS-M-C1 | PS-M-C2
B
OBJ: 1/1
PS-M-C1 | PS-M-C2
B
OBJ: 2/1
PS-M-C1 | PS-M-C2
B
OBJ: 4/2
SI-M-A5 | SI-M-B4 | PS-M-C2
B
OBJ: 3/2
SI-M-A4 | SI-M-A7 | PS-M-C2
T
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
T
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
F
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
T
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
F
PTS: 1
B3(5-8) | B5(9-12) | B6(9-12)
DIF:
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B
OBJ: 1/1
PS-M-C1 | PS-M-C2
B
OBJ: 3/2
SI-M-A4 | SI-M-A7 | PS-M-C2
B
OBJ: 1/1
PS-M-C1 | PS-M-C2
A
OBJ: 4/2
SI-M-A5 | SI-M-B4 | PS-M-C2
B
OBJ: 1/1
PS-M-C1 | PS-M-C2
TRUE/FALSE
46. ANS:
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