Light

Light is a form of _____ energy.

• radiant

• mechanical

• thermal

• gravitational

• nuclear

Light waves are _____ waves.

• longitudinal

• surface

• transverse

• seismic

Light waves are like vibrations (or ripples) in both the electric and magnetic _____.

• fields

• energy

• matter

• atoms

Light waves require a medium made of matter to travel.

• true

• false

At times, light acts less like a wave, and more like it is made of tiny particles called _____.

• electrons

• neutrons

• photons

• protons

_____ is the only type of EM wave that can be seen by humans.

• microwave

• visible light

• infrared

• ultraviolet

• radio

Visible light is actually _____ different wavelengths mixed together.

• 5

• 8

• 7

• 10

The different "colors" of visible light actually have different _____.

• amplitudes

• speeds

• wavelengths

A prism separates visible light into its different wavelengths (colors) by _____.

• absorption

• diffraction

• refraction

• reflection

• scattering

An object that produces its own light is _____.

• illuminated

• luminous

• illuminati

• lumen