Light and Colour - Bill Nye

Front

What is white light?

Back

White light is a combination of all colors of light in the visible spectrum.

Front

True or False: Black cloth absorbs light.

Back

True

Front

What happens to the light absorbed by black cloth?

Back

Much of the light absorbed by black cloth is changed to heat.

Front

When we see things, what are we really seeing?

Back

We are seeing the light being reflected from things.

Front

True or False: Different colors of light have different wavelengths.

Back

True

Front

What is a wavelength?

Back

A wavelength is the distance between two peaks of a wave.

Front

True or False: Light from a laser must be reflected before we can see it.

Back

True

Front

What is reflection in terms of light?

Back

Reflection is when light bounces off a surface.

Front

What is refraction?

Back

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

Front

What is absorption in terms of light?

Back

Absorption is when light is taken in by an object and converted to heat.