sound year 4

How many tiny bones are there in your ear?

• 3

• 4

• 5

• 0

sound travel through vibrations?

• true

• false

Sound travels faster in gas or solid?

• gas

• solid

• all of above

• none

Sound is measured in?

• decibels

• ruler

• sound waves

What is that blue thing in our ear in the picture?

• cochlea

• eardrum

• hammer

• stapes

Give some examples of low pitch sound

• Whistle.

• Fireworks.

• School bell.

• guitar sound

What is another word for volume?

• waves

• soft

• amplitude,

• low pitch

HOW PITCH BE CHANGED IN A HARP?

• by shortening the strings

• by cutting the strings

what is that number that can damage our ears?

• 35

• 3

• 85

• 60

DO ANIMALS HAVE BETTER HEARING SENSE?

• true

• false