GCSE AQA Physics Induced Potential, Transformers & the National Grid: Figure 8 shows how electricity i

Question

Figure 8 shows how electricity is supplied to consumers.

Figure 8

Overhead transmission cables

Power station    Step-up transformer    Consumers

Step-down transformer

07.1
Electricity from the power station can be generated using renewable or non-renewable energy resources.

Complete Table 2 to show which energy resources are renewable and which are non-renewable.

Tick (*) one box in each row.

Table 2

Energy resource         Renewable       Non-renewable

biofuel                       
coal                           
 nuclear                    
 tides

07.2
Transformers are used to make power transmission an efficient process.

Complete the sentences.

Choose answers from the box.

Each answer may be used once, more than once or not at all.

charge           current           resistance           energy           potential difference

The step-up transformer increases the ____________________ and decreases the ____________________.

Using the transformers decreases the ____________________ transfer from the overhead transmission cables to the surroundings.

The step-down transformer decreases the ____________________.

07.3
Write down the equation which links charge flow (Q), current (I) and time (t).

07.4
The town of Horsndale in Australia has electricity supplied by a huge battery.

The battery supplies a current of 130 000 A.

Calculate the charge flow from the battery in 5 minutes.

Choose the unit from the box.

coulombs           newtons            watts

Charge flow = _________________________________ 
Unit = _________________________________

Figure 8 shows how electricity is supplied to consumers - AQA - GCSE Physics - Question 7 - 2022 - Paper 1