1. Use the image below to answer the following question.

At which position does the diver have the most gravitational potential energy?
(1 point)
1
2
3
4
2. How does the gravitational potential energy of Coaster A compare with that of Coaster B?(1 point)
The gravitational potential energy of Coaster A is twice as large as that of Coaster B.
The gravitational potential energy of Coaster A is half as large as that of Coaster B.
The gravitational potential energy of Coaster A is 15 times as large as that of Coaster B.
The gravitational potential energy of Coaster A is equal to that of Coaster B.
3. A 54-kg jogger is running at a rate of 3 m/s. What is the kinetic energy of the jogger? (1 point)
18 J
81 J
162 J
243 J
4. Use the image below to answer the following question.
Which kind of energy transformation occurs during skydiving?
(1 point)
mechanical to gravitational to kinetic to potentialmechanical to potential
5. Use the image below to answer the following question.
Which kind of energy does a bowling ball transfer to bowling pins?
(1 point)
potential
chemical
kinetic
sound
6. A student is trying to identify the different forms of energy described in the following chart:
Form of
Energy
Description Examples
Energy A
energy that travels in waves through
space
light
radio waves
Energy B energy that depends on the height of
an object
a person at the top of a
mountain
a book lifted above ground
Energy C
vibration or disturbance of matter
through waves
vibrations from vocal chords
vibrations from stereo speakers
Energy D
potential and kinetic energy are the
basic types
describes how much work an object
can do
a speeding car
a pebble sitting at the top of a mountain

Which entry describes electromagnetic energy?
(1 point)
Energy A
Energy B
Energy C
Energy D
7. During the process of photosynthesis, plants convert carbon dioxide and water into
glucose. Covalent bonds hold the glucose molecules together. The energy stored in these
covalent bonds is called
(1 point)
nuclear energy
thermal energy
electrical energy
chemical energy
8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point)
increasing the slope of the ramp
reducing the friction between the wagon wheels
reducing the length of the wagon handle
increasing the friction between the wagon wheels
9. To lift a load to the roof, you apply 21 N of force to a pulley. The pulley applies 21 N of force
to the load. What is the mechanical advantage of the pulley?
(1 point)
0
1
40
21
10. Carla applied a force of 35 N to a wheelbarrow full of bricks and moved it 2.5 m. Which of the following can be determined from this information?(1 point)
The wheelbarrow supplied 87.5 J of work.
The wheelbarrow has a mechanical advantage of 14.
The wheelbarrow is 7 percent efficient.
The wheelbarrow has 87.5 J of potential energy.