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WorksheetsWork, energy, and power
Total questions: 20
Worksheet time: 40mins
Kinetic energy is associated with ---.
speed
position
direction
temperature
Pushing against the wall. Is it an example of work?
NO
YES
MAYBE
I am not sure
Where does the pendulum have the least amount of potential energy?
A
B
C
D
E
Where is the kinetic energy of pendulum at its highest?
at the top of the swing
at the bottom of the swing
at 1/4 of the swing
at 3/4 of the swing
Work causes a change in
Sweat
Energy
Calories
Force
what is defined as the product of the magnitudes of displacement and the
component of the force parallel to the displacement ?
work
energy
momentum
power
Potential energy is associated with ---.
speed
position
direction
temperature
A block starts at rest at point P at the top of a ramp which is height h above the ground. The block slides down one side and up the other, stopping at a point less than h above the ground.
The block did not go as high on the other side because gravity pulls down.
The block did not go as high on the other side because potential energy always has to decrease.
The block did not go as high on the other side because work from friction made the mechanical energy less.
The situation as described is impossible to happen.
If there is no friction on this track, at which point would the coaster have the most kinetic energy?
A
B
C
D
Where is the roller coaster gaining potential energy?
A to B
B to C
C to D
The roller coaster is always losing potential energy
A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do climbing the stairs?
400 J
1200 J
200 J
120 J
A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much power did they exert climbing the stairs?
400 W
1200 W
200 W
120 W
How high up is a 3200-kg plane if it has 960000 J of potential energy?
10 m
30 m
307200000 m
300 m
What effect do external forces like an applied force, friction force, or drag force have?
They have no effect on a system's mechanical energy.
They convert kinetic energy into potential energy.
They convert potential energy into kinetic energy.
They convert between mechanical energy and other forms of energy to change the total mechanical energy of the system.
If a 1300-kg car has been lifted so it has 19500 J of potential energy, it was lifted up ---.
1.5 m
150 m
15 m
0.67 m
How does conservation of energy explain why something that is falling should speed up?
It gains kinetic energy because it gains potential energy.
It loses kinetic energy because no work was done on it.
It gains kinetic energy because it loses potential energy.
It loses kinetic energy because the Earth gains potential energy.
