Year 4 - Sound

Sound is caused by...

• noise

• vibrations

• loud music

Sound travels in...

• waves

• a straight line

• I don't know

Sound can travel through wood, glass and water?

• true

• false

• I don't know

The sound causes parts of our body to vibrate which causes us to sense (hear) sound.

• true

• false

• I don't know

Which statement is true?

• the CLOSER to the source of the sound, the LOUDER the volume

• the FURTHER from the source of the sound, the LOUDER the volume

• the CLOSER to the source of the sound, the QUIETER the volume

Sound cannot be heard in a vacuum? ( a space empty of matter)

• true

• false

• I don't know

What causes louder sounds?

• less energy & smaller vibrations

• greater energy & bigger vibrations

• greater energy & small vibrations

Pitch is...

• How loud or quiet a sound is.

• How big or small a sound is.

• How high or low a sound is.

We can reduce the volume of sound by_______.

• insuring

• insulating

• incubating

We measure sound in...

• amps

• dominoes

• decibels