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# Kinetic and Potential Energy Concepts (Grade 7)

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## Kinetic and Potential Energy Concepts

1.
Select the letter that best matches each statement.

A. potential energy B. kinetic energy C. mechanical energy D. motion

1. Stored energy that an object has because of its position

2. The ability to make something move

3. The change of an object's position

4. Energy that an object has because of its motion
2.
Kinetic energy is energy stored up and ready to be used.
1. True
2. False
3.
A baseball flying through the air is an example of kinetic energy.
1. True
2. False
4.
An object that has kinetic energy must be
1. lifted above Earth's surface.
2. in motion.
3. at rest.
4. none of the above
5.
When an object is at rest and is not in motion, it is best described as having                 energy.
1. electrical
2. potential
3. thermal
4. kinetic
6.
What is mechanical energy?
1. only kinetic energy
2. only potential energy
3. both kinetic and potential energy
4. heat energy
7.
As height increases, so does
1. thermal energy.
2. electric energy.
3. kinetic energy.
4. potential energy.
8.
A wagon sitting at the top of a hill is an example of                energy, which is stored energy.
1. potential
2. kinetic
3. magnetic
4. solar
9.
Which of the following is an example of kinetic energy?
1. a child jumping rope
2. a swimmer ready to dive
3. a stuffed toy lying on a table
4. firewood stacked in a fireplace
10.
Which is an example of potential energy?
1. rolling ball
2. stretched rubber band
3. bike at the bottom of a hill
4. bike coasting down a hill
11.
An example of potential energy is
1. a ball rolling down a hill.
2. a Ferris wheel turning.
3. a rock sitting on top of a hill.
4. an apple falling from a tree.
12.
When is the potential energy the greatest in a roller coaster?
1. at the bottom of the first hill
2. at the top of the first hill
3. at the top of the second hill
4. at the bottom of the second hill
13.
Which of the following objects has kinetic energy?
1. a bicycle parked at the top of a hill
2. leaves lying on the ground beneath a tree
3. a ball rolling across the floor
4. a sunny windowsill
14.
Which situation is an example of increasing potential energy?
1. a bicyclist stopping at a stop sign
2. a cat jumping from a tree
3. emptying a bucket of water
4. pulling a wagon uphill
15.
Which statement correctly compares the potential energy of the balls?
1. C has more potential energy than B.
2. E has more potential energy than F.
3. D has less potential energy than E.
4. B has less potential energy than A.
16.
At what point in a waterfall do the drops of water contain the most gravitational potential energy?
1. At the top before they start falling
2. When they first begin moving
3. When they are halfway to the bottom
4. When they reach the bottom of the fall
17.
As a pendulum swings back and forth,
1. potential energy is transformed into kinetic energy.
2. kinetic energy is transformed into potential energy.
3. at the lowest part of its swing, its energy is all kinetic.
4. at the end points of its swing, its energy is all potential.
5. all of the above.
18.
An airplane is slowing down and flying lower as it prepares to land at an airport. Which statement best describes the energy of the airplane?
1. The kinetic energy decreases and the potential energy decreases.
2. The kinetic energy decreases and the potential energy increases.
3. The kinetic energy increases and the potential energy decreases.
4. The kinetic energy increases and the potential energy increases.
19.
Noah carried a skateboard up a hill and then rode the skateboard down the hill. When Noah reached the bottom of the hill, he rolled to a stop. When did Noah have the most potential energy?
1. while carrying the skateboard up the hill
2. while standing on the skateboard at the top of the hill
3. while riding the skateboard down the hill
4. while standing on the skateboard at the bottom of the hill
20.
In your own words, use the Venn diagram to describe what is potential energy and what is kinetic energy.

Label each side and in the middle write one thing that is the same about both.
You may even draw a picture to describe, but please label the picture.

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