You hear sounds more clearly if you are close to whatever is vibrating and making the sound waves..

What is the cause of sound?

• Vibration

• Light

• Heat

• Electricity

Sound waves move out from a vibrating object, making the air move back and forth in a way that we can’t see. What is the name of the vibrating object?

How does the inability of sound to travel through outer space impact our understanding of the universe?

What is sound considered as?

• Form of energy

• Form of matter

• Form of light

• Form of heat

What are the two things that must happen to create a sound?

• Vibration and creation of sound waves

• Reflection and refraction

• Absorption and transmission

• Compression and rarefaction

Through which mediums can sound travel?

• Air only

• Solids, liquids, and gases

• Solids only

• Gases only

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