Primary Year 5 Unit 2 Quizzes

Sound is energy.

• Yes

• No

Vloume of the sound is how ---- or ---- a sound is.

---- describes how high or low a sound is.

Which animals can use very high-pitched sound that we humans cannot hear?

• elephant

• monkey

• bat

• butterfly

We can see that the rice grains will move when we tap the bottle with a spoon. Which will be the reason?

• Sound vibrations

• Spoon

• Glass

Answer explanation

When we tap the bottle, the sound vibrations will travel from the bottle to the plastic wrap, then vibrating the rice grains.

Which material does sound travel best?

• Solid

• Liquid

• Gas

Which is the variable that keeps the same throughout the experiment?

We can prevent damage from loud sounds by ----. You must choose answers to more than one.

• silencers

• ear defenders

• loudspeakers

• amplifiers

We can make a high-pitched sound on the guitar by plucking

• thick string

• thin string

Answer explanation

Thin string will produce a faster vibration them making high-pitched sound when we pluck thin string.

What unit is sound measured in?