What is energy?

• The movement of an object

• The ability to do work or cause change

• The use of electricity

Tags

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What are the five types of energy?

• Light, heat, sound, electrical, mechanical

• Motion, fire, gas, water, air

• Light, heat, water, electrical, air

How does heat energy usually move?

• Heat moves from where it is warmer to where it is cooler

• Heat moves from where it is cooler to where it is warmer

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How does light travel?

• Light naturally reflects, bends, or is absorded

• Light will always move in a straight line

• Light will move in a straight line until it comes into contact with a substance or object. It will then reflect, bend, or be absorbed creating a shadow.

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What is a synonym for heat energy?

• Electrical energy

• Light energy

• Thermal energy

What is sound energy produced by?

• Pitch

• Vibration of matter

• Tiny particles of gas

Is this a picture of a low pitch or high pitch sound wave?

• Low pitch

• High pitch

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True or False:

Fast vibrations cause high pitch and slow vibrations cause low pitch.

• True

• False

Sound travels in waves through what?

• Solids

• Liquds

• Gases

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What is hydropower?

• Energy coming from light

• Energy coming from moving water

• Energy coming from wind