PS3-2 Review

At which point does the pendulum have the MOST kinetic energy?

• Point 1

• Point 2

• Point 3

• Point 4

• Point 5

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At which points does the pendulum have the MOST potential energy? (select TWO)

• Point 1

• Point 2

• Point 3

• Point 4

• Point 5

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• The kinetic energy at point 3 increases as it moves to point 4.

• The potential energy at point 2 increases as it moves to point 4.

• The kinetic energy at point 1 is equal to the potential energy at point 3.

• The potential energy at point 1 is equal to the potential energy at point 3.

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Which of these will reduce the gravitational force between two objects the most?

• halving the distance between them

• doubling the distance between them

• halving the distance between them and doubling their mass

• doubling the distance between them and halving their mass

Based on the data in the table, which of the following is TRUE?

• The gravitational potential energy of an object is not dependent on its mass.

• The gravitational energy of an object is inversely proportional to its height above the ground.

• As the weight of an object is increased, its gravitational potential energy decreases.

• As the height of an object is increased, its gravitational potential energy also increases.

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Many roller coasters function by mechanically transporting the cars up a large incline. The cars then roll down and up a series of hills, turns, and spirals until the cars come to rest at the passenger loading station. At which point will the roller coaster have the greatest amount of gravitational potential energy?

• at the top of the highest point

• at the bottom of the first hill

• when it reaches its top speed

• when it reaches the passenger station

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In gym class a student kicks a soccer ball high into the air. As the ball goes upward, which type of energy is increasing?

• kinetic energy

• thermal energy

• potential energy

• mechanical energy

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Mrs. Pearson’s class is studying the amount of energy stored in objects. If the same rock is put in four different places, at which location will the rock have the MOST potential energy?

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A student is organizing a room. She moves a box from the floor to a shelf. She wants to estimate the amount of potential energy the box has on the shelf. What information does the student need?

• the volume and mass of the box

• the mass of the shelf and the mass of the box

• the mass of the box and the height of the shelf

• the volume of the box and the height of the shelf

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NGSS.MS-PS3-2

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From which position should the ram be released to have the greatest kinetic energy when it hits the spike?

• 1

• 2

• 3

• 4

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