a) Complete this table for the three particles in an atom - Edexcel - GCSE Physics - Question 2 - 2017 - Paper 1
Question 2
a) Complete this table for the three particles in an atom.
The first row has been done for you.
| particle name | charge | mass / mass unit |
|------... show full transcript
Worked Solution & Example Answer:a) Complete this table for the three particles in an atom - Edexcel - GCSE Physics - Question 2 - 2017 - Paper 1
Step 1
Complete this table for the three particles in an atom.
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Answer
particle name
charge
mass / mass unit
proton
+1 (positive)
1
neutron
0 or zero
1/1836
electron
-1 (negative)
1/1836
Step 2
Describe how you could show that the rod is charged.
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Answer
To demonstrate that the rod is charged, you could bring the charged rod near some small pieces of paper. If the rod is charged, the paper pieces will be attracted to the rod, moving towards it. You could also bring the rod close to a stream of water, and observe that the stream bends towards the rod, indicating the presence of an electric charge.
Step 3
Complete the sentence by putting a cross (X) in the box next to your answer.
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Answer
Compared with the rod, the cloth has:
[x] B an equal negative charge
This is because when the rod becomes positively charged, the cloth will acquire a negative charge after losing electrons.
