electromagnetic waves

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through the vacuum of space and consist of oscillating electric and magnetic fields. They include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is wavelength?

Back

Wavelength is the distance between two consecutive peaks (or troughs) of a wave. It is usually measured in meters.

Front

What is frequency?

Back

Frequency is the number of waves that pass a point in one second, measured in hertz (Hz). Higher frequency means shorter wavelength.

Front

What is the relationship between wavelength and frequency?

Back

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

Front

What type of electromagnetic waves have the shortest wavelength?

Back

Gamma rays have the shortest wavelength in the electromagnetic spectrum.

Front

What type of electromagnetic waves are used in microwave ovens?

Back

Microwaves are used in microwave ovens to heat food.

Front

What type of electromagnetic waves can be seen by the human eye?

Back

Visible light is the part of the electromagnetic spectrum that can be seen by the human eye.

Front

What are X-rays used for in medicine?

Back

X-rays are used in medicine to create images of the inside of the body, helping to detect broken bones and other conditions.

Front

What are gamma rays used for in medicine?

Back

Gamma rays are used in medicine for diagnosing and treating cancer.

Front

What is ultraviolet (UV) light?

Back

Ultraviolet light is a type of electromagnetic radiation that is not visible to the human eye and can cause sunburn.