Page 132 - Primary Six Notes

SOUND TRAVEL

Sound travels in sound waves. It travels through the following

media:

1. Air

2. Liquid

3. Solid materials

1. Sound does not travel through vacuum.

2. The speed of sound in air is 330m/sec

3. The speed of sound in water is 500m/s.

4. The speed of sound in metals (solids) is 4800m/sec

Therefore

1. Sound travels fast in gases

2. Sound travels faster in liquids.

3. Sound travels fastest in solids.

Factors affecting the speed of sound

1. Temperatures

2. Wind

3. Altitude