Hearing
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Items in this lesson
Slide 1 - Slide
Slide 2 - Slide
Slide 3 - Slide
Slide 4 - Slide
Slide 5 - Slide
Slide 6 - Slide
Slide 7 - Slide
Slide 8 - Slide
Slide 9 - Slide
Slide 10 - Slide
Label the ear.
Ossicles
Cochlea
Ear drum
Slide 11 - Drag question
Ear canal
Cochlea
Ear drum
Ossicles
Pinna
Auditory nerve
Slide 12 - Drag question
In what order do sound waves travel through the structure of the ear to the brain?
Ear canal
Ossicles
Ear drum
Cochlea
Slide 13 - Drag question
Match the structure to its function.
Converts the vibrations into electrical signals using small hairs.
Passes on vibrations to small bones.
Sends the electrical signals to the brain.
Outer part of the ear that channels the vibrating air.
Tube through which vibrating air particles pass along.
Small bones that amplify the vibrations.
Ossicles
Ear drum
Pinna
Ear canal
Cochlea
Auditory nerve
Slide 14 - Drag question
Explain why it might be a problem if the auditory nerve if damaged.
Slide 15 - Open question
What is the unit of loudness?
Slide 16 - Open question
Slide 17 - Slide
Which sound fits into each section of the table?
0 dB
20 dB
40 dB
60 dB
80 dB
100 dB
120 dB
140 dB
Can't be heard
Normal speech
Pain threshold
Gunshot
Heavy traffic
Rustling leaves
Talking quietly
Plane taking off
Slide 18 - Drag question
Slide 19 - Slide
Slide 20 - Slide
Why do you think a loud sound can cause the ear drum to rupture?
Slide 21 - Open question
Slide 22 - Slide
Which things could damage your hearing?
Damaging to hearing
Loud noises
Quiet sounds
A build up of ear wax
Head injury
Wearing ear defenders
Using cotton buds
Slide 23 - Drag question
What things can we use/do to reduce the risk of damaging our ears?
Slide 24 - Open question
Slide 25 - Slide
Slide 26 - Slide
Explain why mobile phones have a warning level on headphones and will sometimes turn the volume down if you have been listening for a long time.
