Grade 4, Science - Unit 2 (Sound)

How does sound travel?

• by vibrating

• by sleeping

• by train

• by light

What is sound?

• particles

• atoms

• energy

• movement

What does volume mean?

• How loud or quiet a sound is

• How high or low a sound is

What do we call how 'high' or 'low' a sound is?

• pitch

• volume

• decibel

• sound level meter

What unit is the volume of a sound measured in?

• pitch

• atoms

• decibels

• sound level meter

What do we use to measure the volume of a sound?

• pitch

• atoms

• decibels

• sound level meter

Answer explanation

Which sentence describes a high pitch sound?

• The sound waves are close together (high frequency).

• The sound waves are spread out (low frequency).

• The amplitude of the sound wave is big.

• The amplitude of the sound wave is small.

Answer explanation

Which sentence describes a low pitch sound?

• The sound waves are close together (high frequency).

• The sound waves are spread out (low frequency).

• The amplitude of the sound wave is big.

• The amplitude of the sound wave is small.

Answer explanation

Which sentence describes a loud sound?

• The sound waves are close together (high frequency).

• The sound waves are spread out (low frequency).

• The amplitude of the sound wave is big.

• The amplitude of the sound wave is small.

Answer explanation

Which sentence describes a quiet sound?

• The sound waves are close together (high frequency).

• The sound waves are spread out (low frequency).

• The amplitude of the sound wave is big.

• The amplitude of the sound wave is small.

Answer explanation