Year 5 Science Unit 2

When you tap the jar, it makes the rice grains __________.

• jump

• vibrate

• disappear

• float

The rice grains move __________ when you tap the jar hard.

• more

• less

• not at all

• sideways

What do fast vibrations produce?

• Higher-pitched sound

• Lower-pitched sound

• No sound

• Medium-pitched sound

Which material had the lowest sound volume in the table?

• Water

• Air

• Glass

• Wood

What does it mean to muffle a sound?

• Make it louder

• Make it quieter

• Change its pitch

• Speed it up

Which of the following can be used to muffle sound?

• Ear defenders

• Loudspeakers

• Microphones

• Radios

What is an example of a loud sound mentioned in the text?

• Whispering

• Traffic noise

• Bird singing

• Leaves rustling

What can be used to soundproof a car?

• Silencers

• Microphones

• Loudspeakers

• Headphones

What material can be used to muffle sound in a room?

• Metal sheets

• Soft fabric

• Glass panels

• Plastic covers

What can be used to muffle sounds in a car?

• Carpets

• Silencers

• Curtains

• Earphones