Sound and Light Chapter 4

Front

Glass is an example of a ______ material.

Back

Transparent

Front

This part of the ear amplifies the sound.

Back

Middle ear

Front

What is the ray of light that strikes the surface?

Back

Incident ray

Front

This part of the eye controls how much light enters.

Back

Iris

Front

The Law of Reflection states that - The angle of incidence is equal to __________.

Back

The angle of reflection

Front

What is the medium through which sound travels?

Back

A material that can transmit sound waves, such as air, water, or solids.

Front

What is the speed of sound in air at room temperature?

Back

Approximately 343 meters per second.

Front

What is the difference between translucent and transparent materials?

Back

Transparent materials allow light to pass through without scattering, while translucent materials allow some light to pass but scatter it.

Front

What is the function of the outer ear?

Back

To collect sound waves and direct them into the ear canal.

Front

What is the role of the cochlea in the ear?

Back

To convert sound vibrations into electrical signals for the brain.