Youreawizard
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#1
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#1
As there seems to be no thread yet...
Reply to the post that you are answering, so it doesn't get confusing (i.e. quote)
- and leave ANOTHER QUESTION
I'll start :
What is an beta particle? (2 marks)
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melisss22
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#2
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#2
(Original post by Youreawizard)
As there seems to be no thread yet...
Reply to the post that you are answering, so it doesn't get confusing (i.e. quote)

I'll start :
What is an beta particle? (2 marks)
a beta particle is a radioactive particle in the form of an electron, its has a negative charge and has moderately ionising power
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Youreawizard
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#3
(Original post by melisss22)
a beta particle is a radioactive particle in the form of an electron, its has a negative charge and has moderately ionising power
Good job. And how/where is it formed? (post another question when you answer this )
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melisss22
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(Original post by Youreawizard)
Good job. And how/where is it formed? (post another question when you answer this )
the beta particle is formed in the nucleus, it is formed when a neutron is converted into a proton and electron

question (im not doing aqa btw lol) : how does crumple zones decrease force acted on the passenger during impact? (3 marks)
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Monsor
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(Original post by melisss22)
the beta particle is formed in the nucleus, it is formed when a neutron is converted into a proton and electron

question (im not doing aqa btw lol) : how does crumple zones decrease force acted on the passenger during impact? (3 marks)
Kinetic energy is transferred to the distortion of the shape also more time is given for the energy to decrease

Question. What is nuclear fusion

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dominika_
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#6
(Original post by Monsor)
Kinetic energy is transferred to the distortion of the shape also more time is given for the energy to decrease

Question. What is nuclear fusion

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Joining of two or more atomic nuclei together in order to form a larger atomic nucleusQuestion: what is a chain reaction?
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Adilpatel
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(Original post by dominika_)
Joining of two or more atomic nuclei together in order to form a larger atomic nucleusQuestion: what is a chain reaction?
A chain reaction is a continuous reaction of nuclear fission reactions.

Question: what is meant by the conservation of momentum?
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kryptikargon
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(Original post by dominika_)
Joining of two or more atomic nuclei together in order to form a larger atomic nucleusQuestion: what is a chain reaction?
When a neutron is fired at Uranium-235 or Plutonium-239, releasing two smaller nuclei and two or three neutrons which cause a further nuclear fission by reacting in the same way.

Question: how is a voltmeter connected in a circuit and why?
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Youreawizard
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(Original post by Adilpatel)
A chain reaction is a continuous reaction of nuclear fission reactions.

Question: what is meant by the conservation of momentum?
Momentum before collision /explosion = momentum after collision / explosion

How were the elements formed in the universe?
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Adilpatel
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#10
(Original post by kryptikargon)
When a neutron is fired at Uranium-235 or Plutonium-239, releasing two smaller nuclei and two or three neutrons which cause a further nuclear fission by reacting in the same way.

Question: how is a voltmeter connected in a circuit and why?
A voltmeter is connected in parrarell to measure the voltage.

What is meant by braking distance?
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z1820
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(Original post by Adilpatel)
A voltmeter is connected in parrarell to measure the voltage.

What is meant by braking distance?
Distance travelled by a car from when the brakes are applied until the car comes to a stop

Q: what is potential difference?


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CopyThat
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(Original post by Adilpatel)
A voltmeter is connected in parrarell to measure the voltage.

What is meant by braking distance?
Breaking distance is the time it takes for the car to stop after the breaks have been applied

What are the two fuels used in a nuclear reactor?
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Adilpatel
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(Original post by CopyThat)
Breaking distance is the time it takes for the car to stop after the breaks have been applied

What are the two fuels used in a nuclear reactor?
Plutonium-239 and uranium-235
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megmogmoo
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(Original post by z1820)
Distance travelled by a car from when the brakes are applied until the car comes to a stop

Q: what is potential difference?


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potential difference is the work done between two points for the electricity to be transferred from one point to another?
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brotherteresa256
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(Original post by Youreawizard)
As there seems to be no thread yet...
Reply to the post that you are answering, so it doesn't get confusing (i.e. quote)
- and leave ANOTHER QUESTION
I'll start :
What is an beta particle? (2 marks)

The P2 Mark schemes are:
http://www.thestudentroom.co.uk/show....php?t=4171131
http://www.thestudentroom.co.uk/show....php?t=4171902

The P3 Mark scheme is:
http://www.thestudentroom.co.uk/show....php?t=4171127
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