Light Waves

Front

What is a light wave?

Back

A light wave is an electromagnetic wave that is visible to the human eye, responsible for the sense of sight.

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in nanometers for light waves.

Front

Which color of light has the shortest wavelength?

Back

Indigo has the shortest wavelength among the visible colors.

Front

What part of the eye refracts light?

Back

The cornea is the part of the eye that refracts light into the eye.

Front

What is the function of the iris in the eye?

Back

The iris controls the size of the pupil, allowing it to open or close to regulate the amount of light entering the eye.

Front

What does opaque mean?

Back

Opaque refers to materials that do not allow light to pass through, making objects behind them invisible.

Front

What is the role of the pupil in the eye?

Back

The pupil is the opening in the center of the iris that allows light to enter the eye.

Front

What is gamma radiation?

Back

Gamma radiation is a form of electromagnetic radiation with a very short wavelength and high energy, often emitted by radioactive materials.

Front

Where is a person most protected from gamma radiation?

Back

A person is most protected from gamma radiation on Earth due to its atmosphere and magnetic field.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, changing its speed.