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Card 6

Front

Why can scientists not estimate the mass of starts?

Back

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Card 7

Front

What happens to a star after the main sequence stage, to eventually become a black dwarf?

Back

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Card 8

Front

Why is it important that ammeters have a low resistance?

Back

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Card 9

Front

What is an advantage of using the same temperature scale in different countries?

Back

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Card 10

Front

Why does a skateboard move backwards when the person jumps forwards?

Back

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Card 11

Front

What happens in the process of nuclear fission?

Back

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Card 12

Front

In which part of a nuclear power station are isotopes produced?

Back

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Card 13

Front

What is meant by the term half life?

Back

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Card 14

Front

What is the risk to the patient of using radioactive medical tracer?

Back

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Card 15

Front

Why do doctors frequently use radioactive substances for medical diagnosis?

Back

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