8th Grade Unit 4 Lesson 13

Radio waves

• Have a smaller wavelength than x-trays

• Are used to heat food

• Are used to send messages between cellphones

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Microwaves

• Have a larger wavelength than radio waves

• Are used to heat food

• Cans how the temperature of different objects

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Infrared radiation

• Are detected by special cameras

• Have a smaller wavelength than x-rays

• Are the only visible light humans can see

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Visible light

• Have an increasing frequency compared to x-rays

• Only small part of the electromagnetic spectrum

• Have the same wavelength as gamma rays

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Ultraviolet radiation

• Have a an increased wavelength compared to radio waves

• Are visible to the human eye with sunlight

• For added security it can be used to make special images appear, like on money

X-Rays

• Can be seen by the human eye

• Have an increased wavelength compared to visible light

• Have an increased frequency compared to visible light

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Gamma Rays

• Have the highest frequency of all light

• Are just like a shooting star

• Can be seen with a telescope

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Wave frequency can be described as

• The temperature of the waves
• The color of the waves
• The number of complete waves that pass a point in a given time

Wavelength can be described as

• The color of the wave
• The speed of the wave
• The distance between successive crests of a wave

Wave amplitude can be described as

• The frequency of the wave
• The speed of the wave
• The maximum displacement of a wave from its equilibrium position

Tags

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