Electromagnetic Waves and Light

Front

What is the function of the eye's cornea and lens?

Back

The cornea and lens focus light on the retina.

Front

What is the color of an object that reflects all colors of light?

Back

White.

Front

What do we call a material through which light does not pass?

Back

Opaque.

Front

What is the unit of frequency in the electromagnetic spectrum?

Back

Hertz (Hz).

Front

What are electromagnetic waves that help your body produce vitamin D called?

Back

Ultraviolet rays.

Front

What is the visible spectrum?

Back

The range of light wavelengths that can be seen by the human eye, approximately 380 to 750 nanometers.

Front

What is refraction?

Back

The bending of light as it passes from one medium to another.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (km/s).

Front

What is the difference between transparent, translucent, and opaque materials?

Back

Transparent materials allow light to pass through clearly, translucent materials allow some light to pass but scatter it, and opaque materials do not allow light to pass.

Front

What is the electromagnetic spectrum?

Back

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