Sound

• Science
• Lower Secondary (Key Stage 3)

Sound

Which wave is a longitudinal wave?

1. A
2. B

What type of wave is this?

1. Transverse
2. Longitudinal

What type of wave is this?

1. Transverse
2. Longitudinal

What type of wave is this?

1. Transverse
2. Longitudinal

This type of wave vibrates perpendicular to the direction it travels.

1. Longitudinal
2. Transverse
3. Both

This type of wave transfers energy.

1. Longitudinal
2. Transverse
3. Both

Sound is a .......... wave.

1. Longitudinal
2. Transverse
3. Both

Light is a ........... wave

1. Longitudinal
2. Transverse
3. Both

Fill the gaps.

In a transverse wave the vibrations are ............................ to the direction the wave travels.

In a longitudinal wave the vibrations are ............................ to the direction the wave travels.

Perpendicular

Parallel

Sort the statements.

Transverse waves

Both

Longitudinal waves

Transfer energy

Involve vibrating particles

Light waves

Sound waves

Vibrate parallel to direction of energy transfer.

Vibrate perpendicular to direction of energy transfer.

Which box shows a vacuum?

1. A
2. B

Match the keywords to the diagrams.

Solid

Liquid

Gas

Vacuum

Why does the film alien use the tag line, 'in space no one can hear you scream'?

Sound waves must travel through a medium. What is the medium here?

Sound waves must travel through a medium. What is the medium here?

Tin can telephones can communicate short distances. What is the medium here?

Earthquakes can transfer huge amounts of energy. What is the medium?

Match the keywords to the definitions.

The distance that particles move when a sound wave passes.

Vibrations passing through a solid, liquid or a gas.

The number of waves per second.

A substance (solid, liquid or gas).

Amplitude

Frequency

Medium

Sound wave

What do you experience first?

First you...

Then you...

See the lightening.

Hear the thunder.

Why do see lightening before you hear thunder?

Why does sound travel slower in a gas than in a solid?