EM Spectrum

Front

What are the high-energy waves emitted by radioactive materials?

Back

Gamma rays are high-energy electromagnetic waves emitted by radioactive materials.

Front

Which wave in the electromagnetic spectrum has the greatest frequency?

Back

Gamma rays have the greatest frequency in the electromagnetic spectrum.

Front

What determines the color of visible light?

Back

The wavelength of light determines its color.

Front

What is the term for the number of waves that pass a point in one second?

Back

Frequency is the number of waves that pass a point in one second.

Front

Which type of waves are used to send signals, including WiFi and text messages?

Back

Radio waves are used to send signals, including WiFi and text messages.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, from radio waves to gamma rays.

Front

What is the relationship between wavelength and frequency?

Back

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

Front

What type of electromagnetic radiation is used in medical imaging?

Back

X-rays are used in medical imaging.

Front

What is the speed of light in a vacuum?

Back

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

Front

What are microwaves commonly used for?

Back

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