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Phisics > Radiation > Flashcards

Radiation Flashcards

1
Q

The radiation that surrounds us all the time is called

A

Background radiation

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2
Q

There are 3 main types of radiation alpha beta and what

A

Gamma

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3
Q

Is it possibly to es

A

Thrhccndj d. Did

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4
Q

Beta radiation is ……………….…………… by magnetic and electric fields

A

Deflected

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5
Q

Alpha and beta particles have oppersite

A

Charges

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6
Q

Beta radiation is made of

A

Electrons

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7
Q

What’s the charge on a alpha particle

A

2

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8
Q

All types of radiation can

A

Harm cells

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9
Q

Can you predict when an atom will decay

A

No

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10
Q

Who invented the plum pudding model

A

J j Thompson

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11
Q

J J Thomson said that atoms were little circles with tiny things stuck inside them like a plum pudding what are the things

A

Electrons

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12
Q

Rutherford and marsden did what

A

Fired alpha particles into gold foil expecting them to be slightly deflected but they went straight through or came back at them

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13
Q

Rutherford and Marsden discovered that most of the

A

Mass was centred in a nucleus in the centre of the atom

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14
Q

Rutherford and marsden also showed that an atom was mostly

A

Empty space

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15
Q

An atom with the same number of protons but a different number of neutrons are called

A

Isotopes

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16
Q

As a result of being isotopes they have the same atomic number but a different

A

Mass number

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17
Q

Mass number is the number of

A

Protons and neutrons

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18
Q

Can you make something decay

A

No

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19
Q

Alpha beta and gamma are all what

A

Types of ionising radiation

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20
Q

How does The sun contribute to radiation

A

Cosmic waves

21
Q

A small proportion of radiation comes from

A

Hospitals, nuclear power station fallouts and nuclear bombs

22
Q

Radon gas is a huge

A

Background radiation source

23
Q

What percentage of backround radiation comes from the nuclear industry

A

1%

24
Q

Radon gas produces what percentage of radiation

A

51%

25
Q

An alpha particle is the same as a

A

Helium nuclei

26
Q

Alpha particles has

A

2 neutrons and 2 protons

27
Q

Alpha particles have a mass of

A

4

28
Q

Alpha has a charge of

A

+2

29
Q

Alpha particles are big and

A

Heavy

30
Q

Alpha particles can penetrate

A

Nothing they barely penetrate air

31
Q

Because of there size alpha particles are

A

Very ionising they bash into a lot of atoms knocking electrons of them

32
Q

Beta particles are in between

A

Alpha and gamma particles in there properties

33
Q

Beta particles move .:. And are .:.

A

Quite fast and are small

34
Q

Beta particles have a long range in

A

Air

35
Q

Beta particles are ……… ionising

A

Quite ionising

36
Q

For every beta particle released a

A

Neutron turns into a proton in the nucleus

37
Q

A beta particle has what mass and charge

A

No mass and a charge of -1

38
Q

When an atom decays it

A

Gives out gamma beta alpha radiation

39
Q

Beta particles are

A

Electrons produced in the nucleus

40
Q

Gamma radiation is a high

A

energy electromagnetic wave

41
Q

Gamma radiation has no

A

Mass

42
Q

Alpha and gamma radiation are both stopped

A

Before a meter of air is traveled

43
Q

Gamma radiation goes .,…,.,.:;;., in air

A

Several meters

44
Q

Alpha radiation is stopped by

A

Paper

45
Q

Beta radiation is stopped by

A

Thin aluminium

46
Q

Gamma radiation is stopped by

A

Many centimetres of lead

47
Q

Gamma radiation is how ionising

A

Weakly ionising

48
Q

Beta particles are how ionising

A

Quite strong

49
Q

Alpha particles are how ionising

A

Very strongly ionising

Phisics (9 decks)

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