Electromagnetic Spectrum

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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.

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Front

Which electromagnetic waves have the highest frequencies?

Back

Gamma rays have the highest frequencies and the shortest wavelengths in the electromagnetic spectrum.

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NGSS.HS-PS4-1

Front

What is the primary characteristic that distinguishes electromagnetic waves from mechanical waves?

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Electromagnetic waves can travel through empty space, while mechanical waves require a medium (like air or water) to travel.

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NGSS.HS-PS4-3

Front

What type of electromagnetic waves are used in heat lamps and TV remote controls?

Back

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

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What is the order of electromagnetic waves from longest wavelength to shortest wavelength?

Back

The order is: Radio, Microwave, Infrared, Visible Light, Ultraviolet, X-ray, Gamma.

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Which type of electromagnetic waves are commonly used in broadcasting?

Back

Radio waves are commonly used in broadcasting.

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NGSS.HS-PS4-5

Front

What are microwaves used for?

Back

Microwaves are used for cooking food, in radar technology, and in certain communication technologies.

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Front

What is visible light?

Back

Visible light is the portion of the electromagnetic spectrum that is visible to the human eye, typically ranging from wavelengths of about 400 to 700 nanometers.

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

Front

What are ultraviolet rays?

Back

Ultraviolet rays are electromagnetic waves with wavelengths shorter than visible light but longer than X-rays, often associated with sunburn and skin damage.

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NGSS.HS-PS4-3

Front

What is the role of X-rays in medicine?

Back

X-rays are used in medicine to create images of the inside of the body, helping in the diagnosis of various conditions.

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NGSS.HS-PS4-1

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