Electromagnetic Spectrum and Waves

Light is composed of

• particles

• waves

• both waves and particles

• neither waves nor particles

Light particles are called?

• photons
• protons
• electrons
• atoms

Wavelength is the?

• Speed of a wave
• Distance between successive crests of a wave
• How big the waves are

• Number of cycles in a set amount of time

As the number of nodes increases, the energy of the wave

• stays the same
• decreases
• fluctuates
• increases

What is the color of light that has the longest wavelength?

• Red

• Blue

• Green

• Violet

What is the color of light that has the shortest wavelength?

• Red

• Blue

• Green

• Violet

What unit is frequency measured in?

• sec^-1

• Hertz

• Hz

When photons hit an electron:

• The electron will change into a proton
• The photon will be absorbed by the nucleus
• The electron will emit a photon
• The electron may absorb the photon's energy and move to a higher energy level