Question 1
Question
Ernest Rutherford came up with the 'Plum Pudding' model.
Question 2
Question
In 1909, Rutherford tried firing alpha particles at thin gold foil to see what happened.
Question 3
Question
Most of the alpha particles in Rutherford's experiment went straight through the gold foil. What did Rutherford figure out from this?
Answer
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Gold is mostly empty space.
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The nucleus of an atom is very small compared to the rest of it.
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There are positive particles in the atom.
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Alpha particles cannot travel very far.
Question 4
Question
Some of the alpha particles in Rutherford's experiment deflected when they through the gold foil. What did Rutherford figure out from this?
Answer
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Gold is mostly empty space.
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The nucleus of an atom is very small compared to the rest of it.
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There are positive particles in the atom.
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Alpha particles cannot travel very far.
Question 5
Question
A few of the alpha particles in Rutherford's experiment bounced straight back from the gold foil. What did Rutherford figure out from this?
Answer
-
Gold is mostly empty space.
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The nucleus of an atom is very small compared to the rest of it.
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There are positive particles in the atom.
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Alpha particles cannot travel very far.
Question 6
Question
Rutherford's idea was only accepted after his death.
Question 7
Question
Radioactive decay is a random process.
Question 8
Question
Which type of radiation is a fast moving electron?
Question 9
Question
Beta radiation is the only type of radiation that is not a particle.
Question 10
Question
What type of radiation has an unlimited range in air?
Question 11
Question
Paper can stop alpha particles.
Question 12
Question
Which type of radiation has the same structure as a helium nucleus?
Question 13
Question
Alpha particles pose no risk to humans.
Question 14
Question
What type of radiation source do many people have in their homes?
Question 15
Question
Alpha particles can only travel a few centimetres in air.
Question 16
Question
What is the relative charge and relative mass of an alpha particle?
Answer
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Relative charge: +4
Relative mass: 4
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Relative charge: -1
Relative mass: 0
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Relative charge: +2
Relative mass: 0
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Relative charge: +2
Relative mass: 4
Question 17
Question
What is the relative charge and relative mass of a beta particle?
Answer
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Relative charge: +4
Relative mass: 4
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Relative charge: -1
Relative mass: 0
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Relative charge: -2
Relative mass: 0
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Relative charge: +2
Relative mass: 4
Question 18
Question
Gamma radiation is uncharged and has no mass.
Question 19
Question
What is the range of beta radiation in air?
Answer
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1 metre
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5 metres
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50 metres
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5 centimetres
Question 20
Question
Alpha is the most ioning type of radiation.
Question 21
Question
Beta radiation is easily deflected by a magnetic field as it is a fast moving electron.
Question 22
Question
Which of these is NOT a definition of half-life?
Answer
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The average weight of a certain amount of nuclei in a radioactive isotope sample after it has halved.
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The time it takes for the activity of a sample to halve.
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The time it takes for the count rate of a sample to halve.
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The average time it takes for the number of nuclei in a radioactive isotope sample to halve.
Question 23
Question
The half-life of a particular isotope varies.
Question 24
Question
The half-lives of different isotopes range from seconds to many millions of years.
Question 25
Question
What is the half-life of Carbon-14?
Answer
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5,700 years
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570 years
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57 years
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5.7 years
Question 26
Question
What type of radiation and what length of half-life is needed for a radioactive tracer?
Answer
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Gamma radiation, long half-life
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Beta radiation, short half-life
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Gamma radiation, short half-life
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Alpha radiation, short half-life
Question 27
Question
What type of radiation and what length of half-life is needed for a smoke alarm?
Answer
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Gamma radiation, short half-life
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Beta radiation, short half-life
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Beta radiation, long half-life
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Alpha radiation, long half-life