EMS Test Practice

Front

What happens when white light strikes a black object?

Back

No light is reflected.

Front

Which radio station has radio waves with the highest frequency?

Back

WYAY 106.7 MHz

Front

Why does a piece of blue paper appear blue?

Back

It absorbs all colors of light except blue.

Front

In what medium does light travel fastest?

Back

Vacuum of Space.

Front

Why is Color 1 red when light exits a prism?

Back

Color 1 is red because it refracts the least.

Front

What is the definition of reflection in terms of light?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is the definition of refraction?

Back

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

Front

What is the visible spectrum?

Back

The visible spectrum is the range of wavelengths of light that can be seen by the human eye.

Front

What is the relationship between frequency and wavelength in light?

Back

Higher frequency light has shorter wavelengths.

Front

What color of light has the longest wavelength?

Back

Red light has the longest wavelength.