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1. (a) A student gives a plastic strip an overall electric charge - Edexcel - GCSE Physics - Question 1 - 2021 - Paper 1
Question 1
1. (a) A student gives a plastic strip an overall electric charge. (i) Describe one way that the student can give the plastic strip an overall electric charge. (ii... show full transcript
Worked Solution & Example Answer:1. (a) A student gives a plastic strip an overall electric charge - Edexcel - GCSE Physics - Question 1 - 2021 - Paper 1
Step 1
Describe one way that the student can give the plastic strip an overall electric charge.
Answer
The student can give the plastic strip an overall electric charge by using friction. This involves rubbing the plastic strip against another material, which transfers electrons and results in a net electric charge on the strip.
Step 2
Which diagram shows the way that electric charge is now distributed?
Answer
In this scenario, when the negatively charged plastic strip is brought close to the metal cap of the electroscope, electrons in the electroscope are repelled and move away from the cap toward the gold leaf. This causes the gold leaf to receive a negative charge, leading it to bend away from the metal rod. Therefore, the correct diagram is likely the one that shows a concentration of negative charge on the gold leaf, illustrating the distribution of charge in the electroscope.