______ occurs when a light emitting object is moving towards you .

______ occurs when a light emitting object is moving away from you .

When an electron gains energy, it becomes _______.

Frequency and wavelength are ...

Protons are located in the...

The highest energy light wave is...

The light wave with the longest wavelength is...

When the wavelength of a light wave decreases, energy of the wave ____.

Light is given off from an atom when...

All parts of the electromagnetic spectrum pass through the atmosphere.

High frequency waves have ____ energy

All of the parts of the electromagnetic spectrum travel at the speed of light in space.

Which color star is the coolest?

Wien's Law is used to determine the ____ of an object.

A ____ is a particle of light