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Card 6

Front

a continuous spectrum of electromagnetic waves.

Back

Preview of the front of card 6

Card 7

Front

10 to the power of 4 metres. Used for communication.

Back

Preview of the front of card 7

Card 8

Front

10 to the power of -2 metres. used to vibrate water molecules in food. might cause unwanted heating of the body.

Back

Preview of the front of card 8

Card 9

Front

10 to the power of -5 metres. used for remote controls. Can cause burns.

Back

Preview of the front of card 9

Card 10

Front

10 to the power of -7 metres. used for making images.

Back

Preview of the front of card 10

Card 11

Front

tanning, looking at the skeleton, used for radiotherapy ( cancer treatment) all 3 can cause cancer.

Back

Preview of the front of card 11

Card 12

Front

an image is formed ina plane flat mirror when the incident rays goes towards the mirror and the reflected ray comes away from the mirror.

Back

Preview of the front of card 12

Card 13

Front

as a beam of light enters the glass block it slows down but when the beam changes direction away from the nromak the wavlength increases.

Back

Preview of the front of card 13

Card 14

Front

the wave spreads out as it passes through a gap. The smaller the gap the more bendy the waves will be. The bigger the gap the less bendy the waves will be.

Back

Preview of the front of card 14

Card 15

Front

the pitch of a note increases if the frequency of a sound wave increases.

Back

Preview of the front of card 15
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