Energy Transformations

In a closed system, how will the total amount of energy change over time?

• It depends on what's happening in the system

• It will increase

• It will decrease

• It will stay the same

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What energy transformation takes place as a rock rolls down a hill?

• None

• Gravitational Potential Energy to Kinetic Energy

• Thermal Energy to Kinetic Energy

• Rock Energy to Mechanical Energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What energy transformation takes place when a skateboarder uses their speed to skate up a ramp

• Gravitational Potential Energy to Kinetic Energy

• Kinetic Energy to Gravitational Potential Energy

• Rotational Energy to Mechanical Energy

• None

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following energy transformations takes place as someone skids to a stop across the ground?

• None of these

• Thermal Energy to Sound Energy

• Sound Energy to Kinetic Energy

• Kinetic Energy to Thermal Energy

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following energy transformations takes place as a battery-operated toy lights up and starts moving?

• Elastic Potential Energy to Kinetic Energy

• Electrical Energy to Chemical Energy

• Chemical Energy to Kinetic Energy

• None of these

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following energy transformations takes place when you plug in a fan and the blades start turning

• Electrical Energy to Kinetic Energy

• Rotational Energy to Wind Energy

• Thermal Energy to Cold Energy

• None of these

Tags

NGSS.MS-PS3-5

Which of the following energy transformations takes place as someone bounces up from a trampoline

• Elastic Potential Energy to Kinetic Energy

• Thermal Energy to Kinetic Energy

• Gravitational Potential Energy to Kinetic Energy

• None of these

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

At what point on the image does the roller coaster car have the greatest gravitational potential energy?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

At what point on the image does the roller coaster car have the greatest kinetic energy? (ignore friction)

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

At the point when the roller coaster car in the image has the lowest gravitational potential energy, which of the following statements is true? (ignore friction)

• It has the greatest kinetic energy

• It has the same total amount of energy as it did when it started falling

• It is at the lowest height above the ground

• All of these are true

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5