What is Sound?

How can sound be best described?

• The sound you hear when you drop a book.

• Sound is caused by vibrations that travel through three states of matter.

• The sound coming from a musical instrument.

Tags

NGSS.MS-PS4-2

Sound travels through three states of matter. Name these three states of matter.

• solids, liquids and gases

• wood, metal and plastic

• water and air

• oil

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The speed of sound is faster than the speed of light.

• True

• False

Tags

NGSS.MS-PS4-2

Read the following sentence.

When one hits a gong, there is movement. This movement causes the molecules to vibrate. The other molecules around vibrate as well. These vibrations from a group of molecules to the other help sound travel.

Is this true or false?

• True

• False

Tags

NGSS.MS-PS4-2

What is a space with no air called?

• vacuum

• solar system

• basement

Can sound travel in a vacuum?

• Yes

• No

The loudness of a sound is measured in volume, precisely measured in decibels.

• True

• False

A musical instrument gives out sound by itself.

• True

• False

The thickest string of a violin gives out a low sound, whilst the thinnest string gives out a high sound. This can be described as pitch. True or False?

• True

• False

Write how different musical instruments can give out sound.

Example: What do we do to the strings of a guitar for them to give out sound?

Tags

NGSS.MS-PS4-2