Sound Vibrations

Front

What is frequency in sound waves?

Back

Frequency is the number of vibrations per second.

Front

Why does cupping your hands around your mouth when you shout help the sound travel further?

Back

Cupping your hands directs the sound energy in one direction.

Front

What produces sound?

Back

Sound is produced by vibrations.

Front

What happens when you hit a tuning fork on a piece of wood?

Back

The tuning fork vibrates, producing sound.

Front

Which activity produces sound?

Back

Sharpening your pencil produces sound.

Front

What is a vibration?

Back

A vibration is a rapid back-and-forth movement that creates sound.

Front

How does sound travel?

Back

Sound travels through air, water, and solids as vibrations.

Front

What is an example of a sound source?

Back

A guitar string is a sound source when it vibrates.

Front

What is the relationship between sound and energy?

Back

Sound is a form of energy created by vibrating objects.

Front

What is the role of air in sound production?

Back

Air carries sound waves from one place to another.