Electromagnetic Spectrum

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

What is the frequency of infrared waves?

Back

The frequency of infrared waves is approximately 10^12 Hz.

Front

How does wavelength relate to frequency and energy?

Back

A wave with a large wavelength has a low frequency and low energy.

Front

What type of telescope is used to observe radio waves?

Back

A radio telescope is used to observe celestial objects emitting radio waves.

Front

Arrange the following forms of electromagnetic energy from longest to shortest wavelength: Microwave, Infrared rays, Visible light.

Back

Microwave -> Infrared rays -> Visible light.

Front

What is the wavelength of visible light?

Back

The wavelength of visible light ranges from approximately 400 nm (violet) to 700 nm (red).

Front

What type of electromagnetic radiation has the highest frequency?

Back

Gamma rays have the highest frequency in the electromagnetic spectrum.

Front

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

Back

Higher frequency electromagnetic waves have higher energy.

Front

What is the wavelength of X-rays?

Back

X-rays have wavelengths ranging from about 0.01 nm to 10 nm.

Front

What type of radiation is used in microwave ovens?

Back

Microwaves are used in microwave ovens to heat food.