Kinetic Energy Graph

Which graph BEST shows the relationship of kinetic energy (solid line) to potential energy (dotted line) as a hawk dives downward toward its prey and then returns to its original position in the air?

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NGSS.MS-PS3-1

A new cannon was being developed in a science lab. The instructor wanted to do some testing of the cannon's ability to launch objects with different masses. The instructor used tennis balls and filled them with lead, rocks, and styrofoam. The fourth tennis ball had nothing in it. The instructor fired each tennis ball with the same speed and measured the kinetic energy of each over a period of one second. Determine which tennis ball had rocks in it and explain.

• Green represents rocks because it is not as dense as lead and would likely have less mass than lead.

• Green represents rocks because the rocks would occupy less volume than lead but more than styrofoam.

• Purple represents rocks because it traveled faster than all the other objects since it is less dense.

• Purple represents rocks because it has more mass than all the other objects.

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NGSS.MS-PS2-1

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NGSS.MS-PS3-1

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NGSS.MS-PS3-5

A roller coaster is going from the top of a hill down to the bottom of the hill. As it goes down the hill, which of these forms of energy increases?

• Kinetic

• Potential

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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 increases.

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

• 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

The mass of all bicycles and riders indicated in the graph are equal. What indicates the order of their average velocity from greatest to least?

• A, D, C, B

• D, B, C, A

• C, A, D, B

• B, C, A, D

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Based on the diagram of a roller coaster car on a roller coaster track, what statement is true?

• The car at point A has more kinetic energy than the car at point C.

• The car at point C has less kinetic energy than the car at point B.

• The car at point C has more kinetic energy than the car at point B.

• The car at point D has less potential energy than the car at point B.

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NGSS.MS-PS3-1

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The graph shown could represent which of these?

• A book released from a height with the dotted line representing potential energy and the solid line representing kinetic energy.

• A book released from a height with the dotted line representing kinetic energy and the solid line representing potential energy.

• A pendulum released from a height with the dotted line representing potential energy and the solid line representing kinetic energy.

• A pendulum released from a height with the dotted line representing kinetic energy and the solid line representing potential energy.

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NGSS.MS-PS3-1

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

• up a hill

• down a hill

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

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

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Energy due to motion is ____________ energy.

• thermal

• sound

• kinetic

• potential

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which graph represents the kinetic energy of a car accelerating uniformly from rest?

• A) A straight line with a positive slope

• B) A horizontal line

• C) A curve that starts at the origin and increases exponentially

• D) A straight line with a negative slope

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NGSS.MS-PS3-1