light a special kind of wave!. light is only one of a whole family of useful waves! visible light...

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Light A special kind of wave!

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Page 1: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Light

A special kind of wave!

Page 2: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Light is only one of a whole family of useful waves!

RadioMicrowavesInfra-RedVisible Visible lightlightUltra-violetX-raysGamma rays

Next?.........

Page 3: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

One wave we can see!

• Light is only one small part of a whole range of waves called the electromagnetic spectrum

Gamma rays

X-rays ultraviolet

VisiblVisible e lightlight

infrared

microwaves

radio waves

Short wavelength long wavelength

Page 4: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Remember the waves in electromagnetic spectrum?

• Use this phrase to help you…

RabbitsMateInVeryUnusualeXpensiveGardens

Radio waves

Microwaves

Infra red

Visible light

Ultra violet

X rays

Gamma rays

Page 5: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Visible light

Light that we can see can be split up as it passes through a prism.

We can then see these different colours known as the visible visible spectrum.spectrum.

Visible light is only a very small part of the electromagnetic spectrum

A rainbow is formed when light is split up as it passes through raindrops.

Page 6: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Can you remember the spectrum colours?

RedRed GreenGreenOrangeOrange YellowYellow BlueBlue IndigoIndigo VioletViolet

Page 7: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Where does visible light fit in?

Gamma rays

X-rays ultraviolet

VisiblVisible e lightlight

infrared

microwaves

radio waves

Notice where ‘violet’ light is?.... Next to Ultra violet rays!

Notice where ‘red’ light is?.... Next to Infra red rays!

Page 8: Light A special kind of wave!. Light is only one of a whole family of useful waves! Visible light Radio Microwaves Infra-Red Visible light Ultra-violet

Time to test yourself!

• You have seen that visible light waves are only one small part of a range of useful waves called the electromagnetic spectrum

• There are seven types of waves in the electromagnetic spectrum – remember the rabbit rhyme?

• Visible light can be split into seven colours – called the visible spectrum – remember ROY G BIVNow try this test…..

..or go back to the beginning if you are not sure………