Light & waves review

Front

What does it mean for an object to reflect light?

Back

When an object reflects light, it bounces back the light that hits its surface instead of absorbing it. For example, a green frog reflects green light, making it appear green.

Front

What do all waves carry?

Back

All waves carry energy.

Front

What happens to the volume of a sound wave when you increase its amplitude?

Back

Increasing the amplitude of a sound wave increases its volume.

Front

What is a transverse wave?

Back

A transverse wave is a type of wave where the motion of the medium is perpendicular to the direction of the wave. An example is a wave on a string.

Front

Which type of wave in the electromagnetic spectrum has the least energy?

Back

Radio waves have the least energy and the longest wavelength in the electromagnetic spectrum.

Front

What is the definition of wavelength?

Back

Wavelength is the distance between two consecutive peaks or troughs in a wave.

Front

What is the difference between a compressional wave and a transverse wave?

Back

In a compressional wave, the medium moves parallel to the direction of the wave, while in a transverse wave, the medium moves perpendicular to the direction of the wave.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, caused by a change in its speed.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.