EM Spectrum

Front

What part of the electromagnetic spectrum has high enough energy to cause damage to eyes and skin?

Back

Ultraviolet light (UV light) can cause damage to eyes and skin, and is associated with increased risk of skin cancer.

Front

Which electromagnetic waves are used in heat lamps and TV remote controls?

Back

Infrared rays are used in heat lamps and TV remote controls.

Front

What color of visible light has the shortest wavelength?

Back

Violet has the shortest wavelength in the visible light spectrum.

Front

What type of electromagnetic wave has the longest wavelength and lowest frequency?

Back

Radio waves have the longest wavelength and lowest frequency in the electromagnetic spectrum.

Front

What type of wave is electromagnetic radiation classified as?

Back

Electromagnetic radiation is classified as transverse waves.

Front

What is the speed of electromagnetic waves in a vacuum?

Back

The speed of electromagnetic waves in a vacuum is approximately 299,792 kilometers per second (or about 300,000 km/s).

Front

What is the range of wavelengths for visible light?

Back

The range of wavelengths for visible light is approximately 400 nm (violet) to 700 nm (red).

Front

What are microwaves commonly used for?

Back

Microwaves are commonly used for cooking food and in communication technologies.

Front

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

Back

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

Front

What type of electromagnetic radiation is used in medical imaging?

Back

X-rays are a type of electromagnetic radiation used in medical imaging.