Energy Types and Law of Conservation of Energy

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

• a person running on a level track

• an apple falling from a tree to the ground

• a windup spring making a toy car move across the floor

• a rubber band that is being stretched to twice its normal length

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NGSS.MS-PS3-5

Which of these is an example of kinetic energy?

• wind blowing

• water in a glass

• a can of vegetables

• the walls of a building

Sarah is sitting at the top of the slide in the school's playground. Which of the following changes will increase Sarah's kinetic energy?

• An additional child is added to the top of the slide.

• Sarah is pushed and moves down the slide.

• Sarah climbs down the ladder and off the slide.

• The ladder is moved to the other side of the yard.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Tyler has learned that potential energy is energy stored. Tyler's teacher asks the students to come up with a demonstration of potential energy. Which of the following would best work for this demonstration?

• A parked car in the driveway.

• Wheels spinning on the ground.

• A rock after it has been thrown.

• A child at the top of a slide.

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NGSS.MS-PS3-2

Which of these best shows a change from potential to kinetic energy?

• Water flowing over a tall cliff

• A metal spring being stretched

• Electricity making a bulb light up

• A stone lying on top of a mountain

Tags

NGSS.MS-PS3-2

Energy is always conserved. It cannot be created or destroyed. It can, however, be transferred between objects or systems, from one form to another. Which of the following is true of the relationship between kinetic and potential energy?

• When a system loses kinetic energy, it loses potential energy.

• As kinetic energy decreases, potential energy decreases.

• When a system gains kinetic energy, it loses potential energy.

• As kinetic energy increases, potential energy increases.

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy of motion is which type of energy?

• Potential

• Kinetic

• Sound

• Gravitational

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What type of energy is in this picture?

• Kinetic

• Potential

• Chemical

• Sound

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When plants convert the sun's energy into food, which type of energy is it?

• kinetic

• chemical

• thermal

• radiant

Tags

NGSS.MS-LS1-6

What kind of energy is represented in this picture?

• Thermal

• Potential

• Nuclear

• Mechanical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3