1st Semester Final Exam Review of ENERGY

A 16 kg bowling ball and a 8 kg shot put are held 10 meters above the ground outside an office window.  Which of these statements is true?

• The bowling ball and the shot put have the same potential energy because they are the same distance off the ground.

• The bowling ball and the shot put will have the same kinetic energy when falling.

• The bowling ball and the shot put have different masses, so the bowling ball has greater potential energy than the shot put, but the same kinetic energy.

• The bowling ball and the shot put have different masses, so the bowling ball has greater potential and kinetic energy than the shot put because the bowling ball has more mass.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS2-4

The two bowling balls shown in the picture have the same mass of 5 kg.  If bowling ball A (red) travels down the lane with a velocity of 10 m/s and bowling ball B (blue) travels down the lane with a velocity of 15 m/s, which bowling ball has the greatest kinetic energy?

• Bowling ball A and B have the kinetic energy because they have the same mass.

• Bowling ball B travels fastest so it has the greatest kinetic energy.

• Bowling ball A travels slowest so it has the greatest kinetic energy.

• Bowling ball A and B have no kinetic energy.

Tags

NGSS.MS-PS3-1

Which of the following statements describes an energy change that takes place as the person lifts the mallet and then lets it fall toward the target?

• Kinetic energy increases as the mallet reaches its highest point.

• Potential energy decreases as the mallet reaches its highest point.

• Kinetic energy converts to potential energy as the mallet falls toward the target.

• Potential energy converts to kinetic energy as the mallet fall toward the target.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

As a dropped penny falls toward the ground,  ___ energy is converted into ____ energy.

• kinetic into potential

• thermal into potential

• potential into kinetic

• kinetic into heat

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NGSS.MS-PS3-5

The amount of kinetic energy that an object has depends on its ___.

• height above the ground

• height above the ground and gravity

• velocity (speed)

• velocity (speed) and mass

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NGSS.MS-PS3-1

Which of these is an example of the conversion of kinetic energy into gravitational potential energy?

• a bicyclist coasting down a long hill

• a car engine moving the car forward

• a roller coaster car moving toward the top of a rise in the tracks

• a thrown ball falling toward the ground after passing through the top part of its motion

Tags

NGSS.MS-PS3-5

Looking at the pendulum in the picture, at what point(s) would the pendulum have the greatest potential energy?

• Point A

• Points A and D

• Point C

• Points D

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NGSS.MS-PS3-2

Looking at the pendulum in the picture: At which point(s) would the pendulum have the most kinetic energy?

• Point A

• Point B

• Point C

• Point D

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Study the features of this diagram.

When the slingshot is held in position as in the diagram, what kind of energy is present?

• kinetic energy

• potential energy

• chemical energy

• sound energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-2

Study the features of this diagram.

When the person lets go of the slingshot, what happens to the energy?

• The kinetic energy remains zero.

• The potential energy remains 100%.

• The kinetic energy equals the potential energy.

• The potential energy decreases while the kinetic energy increases.

Tags

NGSS.MS-PS3-5