Sound

To make sound less loud and less clear

• Pitch

• Volume

• Muffle

• Vibrating

A unit for measuring sound

• Vibrate

• Decibel

• Source

• Volume

To shake very quickly backwards and forwards

• Pitch

• Volume

• Decibel

• Vibrate

Sound travels best through solids.

• True

• False

Outher space is completely silent.

• True

• False

Trapping the sound vibrations makes the sound softer.

• True

• False

The volume of the sound is how high and low the sound is.

• True

• False

Which words will be in the gaps?

Small vibrations cause ___________sound and large vibrations cause ______________ sound.

• Soft / Loud

• Low / High

• Slow / Fast

We can use _____________________________to measure the volume of the sound.

• Sound checker

• Sound filter

• Sound level meter

• Sound speaker

The faster the vibrations, the _____________ the pitch of the sound.

• Slower

• Higher

• Lower

• Louder