Figure 3 shows a plastic rod being rubbed with a cloth - AQA - GCSE Physics - Question 3 - 2022 - Paper 1
Question 3
Figure 3 shows a plastic rod being rubbed with a cloth.
The plastic rod becomes negatively charged.
Figure 3
Complete the sentences.
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Worked Solution & Example Answer:Figure 3 shows a plastic rod being rubbed with a cloth - AQA - GCSE Physics - Question 3 - 2022 - Paper 1
Step 1
Complete the sentences.
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Answer
The plastic rod becomes charged because it gains electrons.
The cloth also becomes charged because it loses electrons.
Step 2
What charge is left on the cloth?
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Answer
A negative charge.
Step 3
What force is exerted on the two rods?
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Answer
A force of repulsion.
Reason: The rods have the same charge.
Step 4
Which diagram shows the electric field pattern around a negatively charged sphere?
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Answer
The first diagram (with arrows pointing outwards) illustrates the electric field lines.
Step 5
In which position do two charged spheres experience the greatest electrostatic force?
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Answer
Tick Box A (showing both spheres negatively charged).
