Energy Graphs

• At the top of the slide
• At the bottom of the slide

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NGSS.MS-PS3-2

NGSS.MS-PS3-4

At which point on the roller coaster does the cart experience about equal amounts of potential AND kinetic energy?

• 1

• 2

• 3

• 4

A roller coaster is halfway down a slope. Which of the following is true about potential and kinetic energy?

• the amount of potential energy decreases, but the amount of kinetic energy does not change.

• the amount of kinetic energy is equal to one-half of the potential energy.

• as the potential energy decreases, the kinetic energy decreases.

• as the kinetic energy increases, the potential energy decreases.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Potential energy ___________ as kinetic energy increases.

• increases

• decreases

• stays the same

This graph MOST LIKELY describes the potential energy and kinetic energy of a roller coaster going

• up a hill.

• up a hill and then rolling back down the other side.

• down a hill.

• down a hill and then rolling back up the other side.

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

How would you describe the relationship between the mass of a car and its kinetic energy?

• As the mass of a car increases, its kinetic energy decreases.

• As the mass of a car increases, its kinetic energy increases.

• As the mass of a car decreases, its kinetic energy increases.

• There is no clear relationship between mass and kinetic energy.

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

Which graph BEST shows the relationship of kinetic energy to potential energy as a book sits on the edge of a desk?

• A

• B

• C

• D

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NGSS.MS-PS3-1

Which of the following graphs best represents the relationship between potential energy and height for an object in free fall?

• A linear graph with a positive slope

• A linear graph with a negative slope

• A parabolic graph opening upwards

• A horizontal line

In a closed system, if the kinetic energy of an object is plotted against time, what does the area under the curve represent?

• Total energy of the system

• Potential energy of the system

• Work done on the object

• Momentum of the object

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NGSS.MS-PS3-1

A graph shows the energy transformation in a pendulum. At which point is the kinetic energy at its maximum?

• At the highest point of the swing

• At the lowest point of the swing

• Midway between the highest and lowest points

• Kinetic energy remains constant

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NGSS.MS-PS3-1

NGSS.MS-PS3-5