Sound Energy

What is the volume of sound?

• an element of sound determined by the speed which sound waves move (can be high or low)

• How loud something is.

• The area the sound travels.

What is the pitch of sound?

• How loud something is.

• an element of sound determined by the speed which sound waves move (can be high or low)

• The area sound travels.

What causes sound?

• reflection

• refraction

• vibrations

Based on three types of mediums, what is the order in that sound can travel from fastest to slowest?

• Solids, then liquids, and then gases

• Gases, then Liquids, and then solids

• Solids, then gases, and then liquids

Does sound travel in outer space? Why?

• No, because there are no particles for sound to bounce off

• No, because the planets are too far apart

• No, because sound can't refract or bend particles in space

If there is a large amount of water in a bottle, and you blew across it, what pitch will it create?

• A high pitch

• A low pitch

If there is a small amount of water in a bottle, and you blew across it, what pitch will it create?

• A high pitch

• A low pitch

What occurs when you hear an echo?

• Reflection of sound

• Absorption of sound

• Transmission of sound

What is the Reflection of sound?

• the bouncing of a sound wave off a hard and firm surface

• the sound wave going into a soft or uneven surfaces

• the sound wave that goes through a material

A student plays his trumpet on the stage of an empty auditorium. He hears the sound echo back to the stage. Why does he hear an echo?

• because the sound reflects (bounces) off the hard surfaces.

• because the sound is absorbed by the hard surfaces.

• because the sound is transmitted through the hard surfaces.