Electromagnetic Spectrum

Front

What are electromagnetic waves?

Back

electric & magnetic fields (energy) that travel through empty space

Front

The distance between two crests or two troughs of a wave is called:

Back

wavelength

Front

Which electromagnetic waves have the most energy and the shortest wavelengths?

Back

gamma rays

Front

Which electromagnetic waves are used in ovens and cell phone communications?

Back

microwaves

Front

Which type of waves are used in broadcasting?

Back

radio waves

Front

Electromagnetic waves that help your body produce vitamin D are called?

Back

ultraviolet rays

Front

For waves in any medium, as the wavelength decreases, what happens to their energy level (and frequency)?

Back

It increases

Front

How much of the electromagnetic spectrum is made up of visible light?

Back

only a small portion

Front

Which of the following has wavelengths longer than microwaves? Infrared waves, Radio waves, Visible light

Back

Radio waves

Front

Which of the following has more energy (higher frequency) than ultraviolet rays? visible light, infrared rays, x-rays

Back

x-rays