Unit 3 - Electromagnetic Radiation

Front

Which type of electromagnetic energy carries the least energy?

Back

Microwaves

Front

The distance between peaks of electromagnetic waves is called:

Back

Wavelength

Front

What is the term that describes how loud a sound wave is or the brightness of a light wave?

Back

Amplitude

Front

When wavelength increases, what happens to energy?

Back

Energy decreases.

Front

Does the sun produce infrared energy?

Back

Yes, we also feel the infrared energy as warmth on our skin.

Front

What is electromagnetic radiation?

Back

Electromagnetic radiation is a form of energy that travels through space at the speed of light and includes a range of waves such as radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second (or about 300,000 kilometers per second).

Front

What is frequency in the context of electromagnetic waves?

Back

Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz).

Front

What is the relationship between wavelength and frequency?

Back

Wavelength and frequency are inversely related; as wavelength increases, frequency decreases, and vice versa.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, organized by wavelength or frequency.