Figure 8 shows how electricity is supplied to consumers - AQA - GCSE Physics - Question 7 - 2022 - Paper 1
Question 7
Figure 8 shows how electricity is supplied to consumers.
Figure 8
Electricity from the power station can be generated using renewable or non-renewable energy resou... show full transcript
Worked Solution & Example Answer:Figure 8 shows how electricity is supplied to consumers - AQA - GCSE Physics - Question 7 - 2022 - Paper 1
Step 1
Complete Table 2 to show which energy resources are renewable and which are non-renewable energy resources.
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Answer
In Table 2:
biofuel: ✓ (Renewable)
coal: ✓ (Non-renewable)
nuclear: ✓ (Non-renewable)
tides: ✓ (Renewable)
Step 2
The step-up transformer increases the _____________________ and decreases the ____________________.
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Answer
The step-up transformer increases the potential difference and decreases the current.
Step 3
Using the transformers decreases the ____________________ transfer from the overhead transmission cables to the surroundings.
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Answer
Using the transformers decreases the energy transfer from the overhead transmission cables to the surroundings.
Step 4
The step-down transformer decreases the ____________________.
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Answer
The step-down transformer decreases the potential difference.
Step 5
Write down the equation which links charge flow (Q), current (I) and time (t).
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The equation that links charge flow (Q), current (I), and time (t) is:
Q=Iimest
Step 6
Calculate the charge flow from the battery in 5 minutes.
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Answer
To calculate the charge flow (Q) from the battery:
