Oscillating electrons generate changing ____ fields.

Electromagnetic waves ____.

The ____ is the particle that carries radiant energy.

The ____ of light determines whether a radiation will eject electrons.

Electromagnetic radiation with the shortest wavelengths is ____.

The electromagnetic waves with wavelengths slightly longer than visible light are ____.

The frequency of purple light is ____ that of yellow light.

____ are used for medical imaging.

Your body needs ____ to make vitamin D.

Gamma rays are dangerous because they ____.

Carrier waves are in the wavelengths of ____.

FM frequencies are in the range of ____.

The part of the electromagnetic spectrum usually used for communication is ____.

A pager is a ____.