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Physics > P7- Radiation > Flashcards

P7- Radiation Flashcards

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1
Q

What are the 3 types of radiation

A

Alpha, Beta and Gamma

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2
Q

What is alpha radiation made of?

A

A helium nucleus

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3
Q

What is beta radiation made of?

A

A fast moving electron

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4
Q

What is gamma radiation made of?

A

A gamma ray

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5
Q

How strong is alpha’s ionising power?

A

Very strong

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6
Q

How strong is beta’s ionising power?

A

Middle

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7
Q

How strong is gamma’s ionising power

A

Weak

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8
Q

How strong is alpha’s penetrating power?

A

Weak

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9
Q

How strong is beta’s penetrating power?

A

Middle

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10
Q

How strong is gamma’s penetrating power?

A

Strong

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11
Q

How far can alpha radiation travel?

A

A few cm

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12
Q

How far can beta radiation travel?

A

Around 1m

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13
Q

How far can gamma radiation travel?

A

Infinitely

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14
Q

What is alpha radiation stopped by?

A

Skin/ paper

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15
Q

What is beta radiation stopped by?

A

Thin aluminium

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16
Q

What is gamma radiation stopped by?

A

Thick lead/ 1m of concrete

17
Q

Which type of radiation has the highest ionising power?

A

Alpha

18
Q

Which type of radiation has the lowest ionising power?

A

Gamma

19
Q

Which type of radiation has the strongest penetrating power?

A

Gamma

20
Q

What type of radiation has the lowest penetrating power?

A

Alpha

21
Q

Which type of radiation travels the furthest?

A

Gamma

22
Q
A

Physics (3 decks)

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