0
Plastic (in conjunction with a couple of other materials) is a good choice for ear defenders for a number of reasons. First, it's tough and effective. It's also fairly cheap, readily available and easy to work with. Plastics come in a wide variety of types and with as wide a range of characteristics. Can anyone lookaround himself in a day and not see something made of plastic that is in use? Plastic is an excellent material from which to make ear defenders.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How do ear defenders reflect sound waves?
Ear defenders don't reflect sound waves, they absorb or reduce the amplitude of the sound.
How do ear defenders work using a model of energy transfer?
Ear defenders do not transfer the sound waves, instead they absorb them, so as little sound as possible is transferred to the ears
How do ear defenders work using the big idea of energy transfer?
It absorbs sound waves by increasing air resistance reducing the loudness of the waves. The energy is transferred into heat and the person wearing them can hear sounds at a quieter amplitude than the actual sound.
How do you draw a simple particle diagrams to show ear defenders working?
Draw a line and then with a wavy line throughout it. This is a sound wave.
How do ear defenders stop air particles coming in?
the air trapped inside the foam absorbs the sound making it quieterBTW: I KNOW CAUSE I HAD A PROJECT ON THIS AND I GOT AN A+
Why is plastic a good idea for ear defenders?
plastic is a good idea for the final layer of ear defenders because it is tough and effective. it's also relitavely cheap, when do not see plastic used on head/earphones, it helps block out sounds. BOOM
What material can you use for ear defenders?
Foam, rubber, and cotton wool can be used for ear defenders.
What is styrofome?
something that you can make good ear defenders with
What materials that make good ear defenders?
styrofome will do the trick
When making ear defenders why do hey have a hard plastic outer case?
Plastic (in conjunction with a couple of other materials) is a good choice for ear defenders for a number of reasons. First, it's tough and effective. It's also fairly cheap, readily available and easy to work with. Plastics come in a wide variety of types and with as wide a range of characteristics. Can anyone lookaround himself in a day and not see something made of plastic that is in use? Plastic is an excellent material from which to make ear defenders. Rate This Answer
How do ear defenders protect your ears?
Ear defenders protect your ears by absorbing the sound and fizzling it out
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.
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.
What material are on the sides of ear defenders made from?
because it is the best material because it absorbs the sound the best, it is also dense so it can conduct sound. Foam has particles with several small air particles, forming sound waves to absorb into its surface.
Why is foam a good ear defender?
foam would be a good material to use for the inside of the ear defenders, as it will give more support, as well as being dense to conduct sound. Foam has particles with several small air particles, forming sound waves to absorb into it's surface.
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.
What does an ear defender particle diagram look like?
You have your ear defenders. Then the sound waves hit the ear defenders and bounce off it.Other answerFirstly you draw the ear defender. Most likely sideways.Secondly, you can draw the materials you want to use in order and add what the particles look like in each material - close together, far apart etc.Hope I helped XD
