Front

What is the medium through which light travels fastest?

Back

Light travels fastest through air.

Front

What does the Law of Reflection state?

Back

The angle of incidence is equal to the angle of reflection.

Front

How are sound waves measured?

Back

Sound waves are measured in decibels.

Front

What is a plane mirror?

Back

A flat sheet of glass with a silver-colored coating on one side.

Front

What natural phenomenon forms when sunlight is refracted and diffracted through raindrops?

Back

A rainbow forms.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another.

Front

What is the speed of sound in air?

Back

The speed of sound in air is approximately 343 meters per second.

Front

What is the difference between a convex mirror and a concave mirror?

Back

A convex mirror curves outward and diverges light rays, while a concave mirror curves inward and converges light rays.

Front

What is the frequency of a sound wave measured in?

Back

The frequency of a sound wave is measured in Hertz (Hz).

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as one increases, the other decreases.