Electromagnetic Spectrum Review

Front

Electromagnetic waves do not require ________ to transport energy.

Back

matter, medium

Front

Electric fields and magnetic fields occur at ______ angles.

Back

right, 90

Front

What color is a primary color of light, but NOT a primary color of pigments and dyes?

Back

green

Front

Magnetic field lines flow towards the ______ pole of a magnet.

Back

south

Front

Which EM wave has the longest wavelength?

Back

radio

Front

What is the range of wavelengths in the electromagnetic spectrum?

Back

From gamma rays (shortest) to radio waves (longest).

Front

What is the speed of electromagnetic waves in a vacuum?

Back

Approximately 299,792 kilometers per second (or 3 x 10^8 m/s).

Front

What is the relationship between frequency and wavelength in electromagnetic waves?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Front

What type of electromagnetic wave is used in microwave ovens?

Back

Microwaves.

Front

What is the visible spectrum range in nanometers?

Back

Approximately 400 to 700 nanometers.