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WorksheetsAP Review
Total questions: 91
Worksheet time: 2hrs 9mins
A roller coaster car moves down the hill. Assuming that the track is frictionless, which option represents the transfer of energy?
Potential to Kinetic
Kinetic to Potential
Mechanical to Thermal
Mechanical to Potential
The unit for energy and work is
J
N
m/s
m/s/s
Which position has the most kinetic energy? Assume the ball is rolling down the halfpipe from left to right.
A
G
D
B

Which position has the most potential energy? Assume the ball is rolling down the halfpipe from left to right.
A
G
C
D
Which of the following is the best example of work being done?
You lift a heavy box off the floor
You stand still holding a heavy box
Work is being done in both lifting and holding a heavy box
No work is being done for either lifting nor holding a heavy box
Energy stored in a compressed spring is
kx
kx2
1/2 kx2
mgh
By what factor will the kinetic energy of an object increase if the velocity of the object is tripled?
The kinetic energy will stay the same.
3
6
9
An 8-kg object is raised by a crane to the top of a building 20-meters in height. If it takes 50 seconds for the object to get to the top of the building, then how much power was needed?
1600 watts
3.2 watts
32 watts
200 watts
The area under a force-time curve represents:
Change in potential energy
Change in momentum
Change in force
Change in torque
A 31-kg mass is accelerated by a net force of 81 N. What is the acceleration of the mass?
2.6 m/s2
10 m/s2
0.39 m/s2
0.25 m/s2
4 m/s2
What is an example of a non-mechanical energy?
Heat Caused by Friction
Gravitational Potential Energy
Spring Potential Energy
Kinetic Energy
Truck 1 is a 500-kg object traveling at a velocity of 35 m/s, and truck 2, is a 400-kg object traveling at a velocity of 40 m/s. Which object has a larger kinetic energy?
Truck 1
Truck 2
The two trucks have the same kinetic energy
Not enough info is provided
A truck has 2 times the mass of yet another truck, and is moving at the same velocity. If K1 and K2 refer to the two trucks respectively, it is correct to say that
K1=4K2
K1=3K2
K1=2K2
K1=K2
What is the equation for spring potential energy?
Us= (k)(x)2
Us= (k)(x)
Us= 1/2(k)(m)
Us= 1/2(k)(x)2
A stone is held at a height h above the ground. A second stone with six times the mass of the first stone is also held at height h. the gravitational potential energy of the second stone stone compared to the first one is...
One-fourth as much
Twice as much
Three times as much
Six times as much
The unit for energy and work is
J
N
m/s
m/s2
A pendulum is released from point C. Which statement is correct as it swings from C to A?
The PE increases and KE decreases
The KE increases and PE decreases.
The PE is maximum at A.
The KE is maximum at C and B.
When my velocity triples, my kinetic energy increases by
9 times
2 times
5 times
0.5 times
If you are pushing a dresser across the room, which direction is the force of friction?
The opposite direction of your applied force.
The direction of your applied force.
To the left of your applied force.
To the right of your applied force.
What is the net force?
0 N
5 N
10 N
15 N
The area under a force vs. displacement graph tells you the
mass of the object
momentum of the object
work done on the object
impulse of the object
What are common units for linear acceleration?
m/s
m/s2
kg*m/s2
m*s2
rad/s2
What are common units for centripetal acceleration?
m/s
m/s2
kg*m/s2
m*s2
rad/s2
What are common units for linear momentum?
m/s
m/s2
kg*m/s2
N*s, or kg*m/s
rad/s2
What are common units for kinetic energy?
Joules
m/s2
kg*m/s2
N*s, or kg*m/s
rad/s2
Units that are equivalent to the Newton? (Think about F=ma)
kg*m/s
m/s2
kg*m/s2
N*s, or kg*m/s
rad/s2
Units that are equivalent to a joule? (Think about W =Fd)
kg*m/s
m/s2
kg*m/s2
N*s, or kg*m/s
kg*m2/s2
What are common units for angular velocity?
kg*m/s
rad/s2
kg*m/s2
rad/s
degrees/s2
What are common units for angular acceleration?
kg*m/s
rad/s2
kg*m/s2
rad/s
Newtons/s2
What are common units for torque?
kg*m/s
m*N
kg*m/s2
rad/s
Newtons/s2
What are common units for rotational kinetic energy?
kg*m/s
m*N
kg*m/s2
Joules
Newtons/s2
What are common units for a spring constant, k?
kg*m/s
m*N
kg*m/s2
Joules
N/m
What are common units for force?
Newton
m*N
kg2*m/s2
Joules
N/m
What are common units for frequency?
Newton
Hz
kg2*m/s2
Second
N/m
What are common units for coefficient of kinetic friction?
Newton
Hz
kg2*m/s2
it has no units
N/m
If the graph has Force as the y axis and x (distance stretched) as the x axis; what information would the slope of the graph give you about a spring?
Energy
Spring Constant
Force
Coefficient of Friction
If the graph has Force as the y axis and x (distance stretched) as the x axis; what information would the area under the graph give you about a spring?
Energy
Spring Constant
Force
Coefficient of Friction
If the graph has Force as the y axis and Distance as the x axis; what information would the area under the graph give you? (The Force and the Distance moved are in the same direction.)
Work
Spring Constant
Force
acceleration
A constant force is applied to a box, on a surface with no friction, causing the box to accelerate. Which graph would represent the relationship between velocity of the box, on the y axis, and time on the x axis. (Assume the box starts from rest.)
A constant force is applied to a box, on a surface with no friction, causing the box to accelerate. Which graph would represent the relationship between displacement of the box, on the y axis, and time on the x axis. (Assume the box starts at a 0 m displacement and the direction of the force is considered the positive direction.)
A ball is in freefall near the surface of the Earth. (Air resistance is negligible.) Which graph represents the motion of the ball, if velocity is on the y axis and time is on the x axis? (Let down, be the positive direction.)
A ball is in free fall near the surface of the Earth. (Air resistance is negligible.) Which graph represents the gravitational potential energy of the ball, as time passes. Let the y axis be gravitational potential energy and the x axis be time?
A ball is in free fall near the surface of the Earth. (Air resistance is negligible.) Which graph represents the kinetic energy of the ball, as time passes. Let the y axis be kinetic energy and the x axis be time?
A ball is in free fall near the surface of the Earth. (Air resistance is negligible.) Which graph represents the amount of total mechanical energy of the ball, as time passes. Let the y axis be total mechanical energy and the x axis be time?
A ball is in free fall near the surface of the Earth. (Air resistance is negligible.) Which graph represents the acceleration of the ball, as time passes. Let the y axis be acceleration and the x axis be time? (Let the downward direction be positive.)
A ball is in free fall near the surface of the Earth. (Air resistance is negligible.) Which graph represents the change in acceleration of the ball, as time passes. Let the y axis be the change in acceleration and the x axis be time?
