Sound and Vibration -- Do you hear what I hear?

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

What is vibration?

Back

Vibration is the movement back and forth of an object, which creates sound.

Front

What makes a loud sound?

Back

A loud sound is made by strong vibrations or big waves.

Front

What makes a soft sound?

Back

A soft sound is made by weak vibrations or small waves.

Front

Can sound waves be big or small?

Back

Yes, sound waves can be big or small.

Front

What happens when you sharpen a pencil?

Back

Sharpening a pencil creates sound because it causes vibrations.

Front

What is an example of a soft sound?

Back

A paper clip falling onto the ground makes a soft sound.

Front

What is an example of a loud sound?

Back

A thunderclap is an example of a loud sound.

Front

How do we hear sound?

Back

We hear sound when sound waves travel through the air and reach our ears.

Front

What is an echo?

Back

An echo is a sound that bounces back after hitting a surface.