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Card 16

Front

when a spring is squashed and released it warms up. why

Back

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Card 17

Front

when do objects have momentum?

Back

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Card 18

Front

what is the momentum of a 100kg car travelling at 30m/s?

Back

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Card 19

Front

what is the total momentum after an explosion equal to?

Back

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Card 20

Front

what is impact time?

Back

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Card 21

Front

why do cars have crumple zones at both the front and the rear?

Back

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Card 22

Front

what happens to a passenger in a head in collision: (a( if theyre not wearing a seat belt (b) if they were wearing a very narrow seat belt?

Back

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Card 23

Front

how does an illustrator become negatively charged?

Back

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Card 24

Front

what will happen if 2 negatively charged objects are brought close together?

Back

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Card 25

Front

what is the circuit symbol for a closed switch?

Back

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