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You can start with the drawing and choosing the materials. A plastic outer case would be good because it will reflect the sound.
Then you need to think about a filling and why they work. You need to use science about the sound waves, vibrations, amplitude, pitch, reflecting and absorbing, particle diagrams and all of that stuff.
Hope it helped!! ;) x
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∙ 11y ago
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What is styrofome?
something that you can make good ear defenders with
What materials that make good ear defenders?
styrofome will do the trick
How do ear defenders protect your ears?
Ear defenders protect your ears by absorbing the sound and fizzling it out
What material can you use for ear defenders?
Foam, rubber, and cotton wool can be used for ear defenders.
Where do people wear ear defenders?
people wear ear defenders because incase of a high pitch sound the ears defenders absorb the sound and then you don't have an ear infection.
Why should you use polystyrene and thermalplastic to make ear defenders?
it blocks out sound.
How do ear defenders protect your ear?
Well, ear defenders absorbs the sound from going to your ear, if you don't wear ear defenders when your working in loud noises your ear can be damage.
Who needs to wear ear defenders?
The people who wear ear defenders are the people who live or work in noisy environments, the Ear defenders protect them from loud noises, For example a builder might wear ear defenders to prtect his ears from the loud noise of the construction site. The noise may damage, His/Her ears.
Why do people wear ear defenders?
people wear eardefenders because some peoples ears get really cold and they can get an ear infection that's why people wear ear defenders
What part of the ear is protected when wearing ear defenders?
Well, ear defenders will sit over your whole ear protecting all of it. But the part that's important to protect is the inner ear, that's where the actual hearing takes place.
Who wears ear defenders?
work men
Why do road diggers need ear defenders?
Because digging roads is very loud work and will damage your hearing if you don't wear ear defenders.
