KS3 Physics - Waves

What is a wave?

• A wiggly line.

• An oscillation or vibration that transfers energy.

• A force that transfers heat.

What is amplitude?

• The distance from the bottom to the top of the wave

• The distance from one side of the wave to the other

• The distance from the middle to the top or bottom of the wave

What is the name of the passage from the outer ear to the ear drum?

• Auditory canal

• Auditory tunnel

• Auditory track

• Auditory hole

Which part of the ear does the following statement describe?

'Snail-shaped tube in the inner ear with the sensory cells that detect sound.'

• Oval window

• Cochlea

• Eardrum

• Ossicles

What is the compression of a wave?

• The part of a transverse wave where the trough is furthest from the crest.

• The part of a longitudinal wave where the air particles are far apart.

• The part of a transverse wave where the trough is close to the crest.

• The part of a longitudinal wave where the air particles are close together.

What is the top of a wave called?

• Wave

• Crest

• Trough

• Amplitude

What is the bottom of a transverse wave called?

• Trough

• Amplitude

• Crest

• Frequency

What is the unit used to measure sound intensity or loudness?

• Hertz (Hz)

• Power (W)

• Decibel (dB)

Which part of the body detects sound?

• Heart

• Nose

• Eyes

• Ear

What is the eardrum?

• A membrane that transmits sound vibrations from the outer ear to the middle ear.

• A membrane that stops sound from travelling through the ear.

• A musical instrument the size of an ear