Introduction to Sound

Front

What is sound?

Back

Sound is a type of energy that travels in waves and can be heard when it reaches our ears.

Front

How do we know a tuning fork is vibrating?

Back

We can show that a tuning fork is vibrating by placing it in water and observing the ripples.

Front

What causes things to vibrate?

Back

Sound causes things to vibrate.

Front

What do we feel when we hum?

Back

When we hum, we feel vibrations in our throat.

Front

What happens when a speaker makes a loud sound?

Back

When a speaker makes a loud sound, it can cause things around it to vibrate.

Front

What is a tuning fork?

Back

A tuning fork is a metal instrument that produces a specific pitch when struck.

Front

What is vibration?

Back

Vibration is a rapid back-and-forth movement of an object.

Front

What happens when you hit a drum?

Back

Hitting a drum causes it to vibrate, producing sound.

Front

Can sound travel through water?

Back

Yes, sound can travel through water.

Front

What is an example of a sound source?

Back

A speaker, a drum, or a tuning fork are examples of sound sources.