Sound 2

What is a transducer?

• Something that converts sound energy to electrical enery

• Something that measures sound energy

• Something that increases the speed of sound

• Something that converts water energy to sound energy

What is NOT an example of a sound transducer?

• Microphone

• Speaker

• TV remote

• Earphones

What does the picture show?

• Echolocation

• Ultrasound

• Radar

• Transducer

Which animal makes ultrasonic sounds?

• Elephant

• Whale

• Mouse

• Rhino

Which animal makes infrasonic sounds?

• Dolphins

• Bats

• Elephant

• Moths

Which animal can hear through their feet?

• Elephants

• Bats

• Giraffes

• Dolphins

What part of the ear does the diagram show?

• The outer ear

• The middle ear

• The inner ear

What part of the ear makes vibrations?

• The ear canal

• The eardrum

• The ear lobe

• The auditory nerves

What happens if you get lots of ear damage?

• Deaf

• Blind

• Mute

What do we call sounds that are greater than humans can hear? E.g. sounds above 20,000Hz

• Infrasonic sounds

• Ultrasonic sounds