What is sound?

• A form of light

• A form of energy

• A form of matter

• A type of electric current

Sound waves are:

• Longitudinal waves

• Transverse waves

• Electromagnetic waves

• Surface waves

The speed of sound is fastest in:

CLUE: Think of the state of matter ie solid, liquid, gas

• Air

• Water

• Steel

• Vacuum

Which part of the ear vibrates when sound waves enter?

• Cochlea

• Eardrum

• Pinna

• Auditory nerve

The frequency of a sound wave is measured in:

• Decibels

• Meters per second

• Hertz

• Watts

A sound wave with a high frequency will have:

• A high pitch

• A low pitch

• A loud volume

• A soft volume

The amplitude of a sound wave determines its:

• Speed

• Pitch

• Loudness

• Frequency

What type of wave is used by bats to navigate and find prey?

• Sound wave

• Light wave

• Radio wave

• Water wave

Echo is caused by:

• Refraction of sound

• Absorption of sound

• Reflection of sound

• Diffraction of sound

The unit of sound intensity level is:

• Hertz

• Decibel

• Watt

• Newton