Which one of the following has the largest kinetic energy?

the Earth moving in its orbit around the sun

Answer this question:

the net work done by the two forces is zero

A donkey pulls a crate up a rough, inclined plane at constant speed. Which statement is FALSE?

the work done on the object by gravity is zero joules

A force that acts on an object is said to be conservative if

the work it does on the object is independent of the path

In which of the following situations is zero net work done?

a box is pulled across a rough floor at constant velocity

Which one of these objects does NOT have zero kinetic energy?

a satellite in geosynchronous orbit

Answer this question:

The lighter one has ½ as much kinetic energy as the other.

In which of the following situations will there be an increase in kinetic energy?

a ball starts from rest and rolls freely downhill

Which one of the following statements concerning kinetic energy is true?

Kinetic energy is always positive.

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Duplicate of AP Physics 1: Energy

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Questions 20

Answers

1
Answer this question:
80 J
30 J
100 J
160 J
2
Which one of the following has the largest kinetic energy?
a raindrop falling
a woman swimming
the Earth moving in its orbit around the sun
a jet airplane flying at its maximum speed
3
What power is needed to lift a 50 kg person a vertical distance of 5.0 m in 20.0 s?
none of the above
125 W
12.5 W
500 W
4
Answer this question:
the net work done by the two forces is zero
magnitude of tension work > magnitude of gravitational work
magnitude of tension work < magnitude of gravitational work
the work done by the tension force is zero joules
5
Which of the following choices is an example of a non-conservative force?
gravitational force
elastic spring force
kinetic frictional force
electric force
6
Answer this question:
0.30
0.76
0.60
0.32
7
A donkey pulls a crate up a rough, inclined plane at constant speed. Which statement is FALSE?
the net work done by all the forces on the crate is zero
the gravitational potential energy is increasing
the work done on the crate by the normal force is zero
the work done on the object by gravity is zero joules
8
A force that acts on an object is said to be conservative if
the work it does on the object is independent of the path
it results in a change in the object's kinetic energy
it always acts in the direction of motion of the object
it obey's Newton's laws of motion
9
Which of the following choices is an example of a conservative force?
normal
static frictional force
tension
elastic spring force
10
In which of the following situations is zero net work done?
a box is pulled across a rough floor at constant velocity
a physics student stretches a spring
a ball rolls down an inclined plane
a projectile falls toward the surface of the Earth
11
Answer this question:
8 x 106 W
8 x 104 W
8 x 107 W
8 x 105 W
12
Which one of these objects does NOT have zero kinetic energy?
a car parked at the top of the hill
a satellite in geosynchronous orbit
a drum of diesel fuel on a parked truck
a stationary pendulum
13
Work may be expressed using all of the following units except:
Newton meter
joule
foot pound
watt
14
Answer this question:
270 J
140 J
450 J
180 J
15
Answer this question:
The lighter one has ½ as much kinetic energy as the other.
The lighter one has ¼ as much kinetic energy as the other.
The lighter one has the same kinetic energy as the other.
The lighter one has 2x as much kinetic energy as the other.
16
Answer this question:
80 J
100 J
400 J
300 J
17
Answer this question:
8.7 m/s
76 m/s
7.7 m/s
59 m/s
18
In which of the following situations will there be an increase in kinetic energy?
a box is pulled across a rough floor at constant speed
a ball starts from rest and rolls freely downhill
a satellite travels in a circular orbit at a fixed altitude
a projectile approaches its maximum height
19
Answer this question:
32.2 m/s
16.1 m/s
131 m/s
11.4 m/s
20
Which one of the following statements concerning kinetic energy is true?
Kinetic energy is a quantitative measure of inertia.
Kinetic energy is always equal to potential energy.
Kinetic energy is always positive.
Kinetic energy can be measured in watts.

Duplicate of AP Physics 1: Energy Flashcards | StudBud