My homework is this:
People who work in noisy places need to wear ear defenders to protect their ears from damage
Task:
Using your knowledge and understanding of sound and hearing, design a pair of ear defenders .
They should be made of a hard outer case and materials filling it to reduce the sound reaching your ears.
.draw your design on a piece of A4 paper.
.label the materials you use.
.give reasons for your choice of materials.
.use scientific knowledge of sound to explain how your ear defenders will work.
key words:
absorb, air particles, amplitude, insulator, loud, pitch, plastic, quiet, reflect, soundwave, vibration
Please help me I really don't have a clue what to do !!!
People who work in noisy places need to wear ear defenders to protect their ears from damage
Task:
Using your knowledge and understanding of sound and hearing, design a pair of ear defenders .
They should be made of a hard outer case and materials filling it to reduce the sound reaching your ears.
.draw your design on a piece of A4 paper.
.label the materials you use.
.give reasons for your choice of materials.
.use scientific knowledge of sound to explain how your ear defenders will work.
key words:
absorb, air particles, amplitude, insulator, loud, pitch, plastic, quiet, reflect, soundwave, vibration
Please help me I really don't have a clue what to do !!!