Waves and Electromagnetic Spectrum Flashcard

Front

What are gamma rays?

Back

Gamma rays are a type of electromagnetic wave with the highest frequency and energy, often used in medical treatments and imaging.

Front

What is visible light?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye, consisting of colors from red to violet.

Front

What is a digital signal?

Back

A digital signal is a type of signal that represents data as a sequence of discrete values, typically using binary code (0's and 1's).

Front

What is an analog signal?

Back

An analog signal is a continuous signal that represents physical measurements, such as sound or light, in a varying form.

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 benefit of digital signals over analog signals?

Back

Digital signals maintain their quality over long distances better than analog signals and can be easily recorded and stored.

Front

What is the frequency of a wave?

Back

Frequency is the number of times a wave oscillates or cycles per second, measured in Hertz (Hz).

Front

What is wavelength?

Back

Wavelength is the distance between successive crests of a wave, typically measured in meters.

Front

What happens when an object vibrates?

Back

When an object vibrates, it creates sound waves that travel through a medium, such as air or water.

Front

What is infrared radiation?

Back

Infrared radiation is a type of electromagnetic wave with a longer wavelength than visible light, often associated with heat.