Sound

What type of wave is a sound wave

• Longitudinal

• Transverse

What direction do particles vibrate in a sound wave

• At right angles to the direction of travel

• Parallel to the direction of travel

• Reverse to the direction of travel

A large amplitude creates a sound with a

• Low volume

• High volume

• Low frequency

• High frequency

A low pitch creates a sound with a

• Low volume

• High volume

• Low frequency

• High frequency

What must be measured to calculate the speed of sound

• speed and time

• distance and speed

• distance and time

• frequency and distance

What is the speed of sound

• 333 m/s

• 340 m/s

• 340 m

• 340 s

Doubling the frequency produces a wave with

• 4 times as many waves

• 2 times as many waves

• half the amount of waves

Sound can be measured using

• A decibel meter

• A sound meter

• A sound decibel scale

What is the threshold for pain in human hearing

• 90 dB

• 85 dB

• 80 dB

• 120 - 140 dB

Which of the following are not examples of measures taken to combat noise pollution

• Noise cancelling earphones

• Double glazing windows

• Wall insulation

• Noise enhancing earphones