Definitions
Formulas
Kinetic Energy
Potential Energy
100

Define kinetic energy

energy in motion

100

What do m, v, and h represent in a formula?

Mass, velocity, and height

100

Describe the area of lowest kinetic energy on a rollercoaster.

At the top of the highest point.

100

Which of the following most influences potential energy?

A. Mass

B. Height

C. Velocity

D. Volume

B. Height

200

Define potential energy

energy that is stored or waiting to be used.

200

What is the formula for potential energy?

PE = mgh

200

When analyzing a pendulum, is kinetic energy highest on an end, or in the swing, and why?

In the swing, where speed is highest.

200

When analyzing a pendulum, is potential energy highest on an end, or in the swing, and why?

On either end (if heights are equal) because the ends represent the greatest height.

300

Define gravitational potential energy

stored energy due to position

300

What is the formula for kinetic energy?

1/2mv2

300

Kinetic energy is most influenced by:

A. Height

B. Mass

C. Speed

D. Gravity

C. Speed

300

List two examples of chemical energy, and two examples of elastic energy.

Chemical: batteries, food, gasoline, natural gas

Elastic: springs, rubber bands, slingshots

400

Define chemical energy

stored energy from chemical substances

400

In the formula for kinetic energy, which is halved?

A. Mass

B. Velocity

C. Both

A. Mass

400

A professional baseball player hits a home run at the end of the ninth inning. The ball's maximum speed reaches 100 mph. At what point does the ball likely have the most kinetic energy?

A. In the pitcher’s hand.

B. Just after it’s hit by the bat.

C. As it drops to the ground.

D. When it lands.

B. Just after it's hit by the bat.

400

Consider a graph. If potential energy is on the Y axis, and height is on the X axis, what type of slope will be observed, and why?

A. Positive incline

B. Negative incline

C. Straight, Horizontal slope

D. A parabola

A. Positive incline because PE and height have a direct relationship; as height increases, so will PE.

500

Define elastic energy

stored energy due to stretching or compression

500

In the formula for potential energy, what is the numerical representation of gravity?

9.8

500

A 5 kg object is moving 20 m/s. Calculate kinetic energy.

1000 J

500

Calculate potential energy if mass is 10kg and height is 5m.

490 J

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