Light Flashcard Review

Front

Do electromagnetic waves require a medium?

Back

No, electromagnetic waves do not require a medium to travel.

Front

What is an example of a transverse wave?

Back

Light is an example of a transverse wave.

Front

State the law of reflection.

Back

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

Front

What do we observe in the galaxies' absorption spectra that indicates they are moving away from us?

Back

Red shift.

Front

List the mediums light moves through in order from fastest to slowest.

Back

Vacuum, gas, liquid, solid.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second.

Front

What is refraction?

Back

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

Front

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

Back

In a transverse wave, the particle displacement is perpendicular to the direction of wave propagation, while in a longitudinal wave, it is parallel.

Front

What is the principle of superposition?

Back

The principle of superposition states that when two or more waves overlap, the resulting wave displacement is the sum of the individual displacements.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, from radio waves to gamma rays.