Domestic electricity review

In this lesson we will be reviewing the ideas of electricity in the home, power and the national grid. We will also be looking at synoptic style questions.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Revision - Current × potential difference equals ...

Resistance Power Charge Energy transferred

1/5

Q2.Revision: A fuse melts when ...

the current is too high. the current is too low. the current is alternating. the potential difference is too high.

2/5

Q3.What happens at a step-up transformer?

the potential difference increases the potential difference decreases the current increases the resistance increases

3/5

Q4.Which of these is an advantage of overhead power cables?

They look nice. They aren't affected by the weather. They are cheap. They are hidden.

4/5

Q5.Why is it important to use a high potential difference across overhead cables?

High potential difference is safest. High potential difference won't be affected by the weather. High potential difference, reduces the current and so reduces energy losses. High potential difference, increases the current and so reduces the energy losses.

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Question 1

Question 2

Question 3

Question 4

Question 5

Q1.Revision - Current × potential difference equals ...

Resistance Power Charge Energy transferred

1/5

Q2.Revision: A fuse melts when ...

the current is too high. the current is too low. the current is alternating. the potential difference is too high.

2/5

Q3.What happens at a step-up transformer?

the potential difference increases the potential difference decreases the current increases the resistance increases

3/5

Q4.Which of these is an advantage of overhead power cables?

They look nice. They aren't affected by the weather. They are cheap. They are hidden.

4/5

Q5.Why is it important to use a high potential difference across overhead cables?

5/5

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Domestic Electricity Review

This quiz will test your knowledge from this lesson and your prior learning.

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.Which of these is a supply of direct current?

Power Station Battery Mains Power Supply Generator in a power station

1/6

Q2.Which wire is the fuse connected to?

Live Earth Neutral

2/6

Q3.What colour is the live wire?

Green Green and yellow Blue Brown

3/6

Q4.A stereo has a usual operating current of 3.6 A. Which fuse is the most appropriate to use?

1 A 3 A 5 A 13 A

4/6

Q5.The stereo has a current of 3.6 A and operates at mains power supply voltage. What is the power of the stereo?

3.6 W 64 W 828 W 936 W

5/6

Q6.Describe the function of a step down transformer.

The potential difference decreases. The potential difference increases. The current decreases. The resistance increases.

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Domestic Electricity Review

This quiz will test your knowledge from this lesson and your prior learning.

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.Which of these is a supply of direct current?

Power Station Battery Mains Power Supply Generator in a power station

1/6

Q2.Which wire is the fuse connected to?

Live Earth Neutral

2/6

Q3.What colour is the live wire?

Green Green and yellow Blue Brown

3/6

Q4.A stereo has a usual operating current of 3.6 A. Which fuse is the most appropriate to use?

1 A 3 A 5 A 13 A

4/6

Q5.The stereo has a current of 3.6 A and operates at mains power supply voltage. What is the power of the stereo?

3.6 W 64 W 828 W 936 W

5/6

Q6.Describe the function of a step down transformer.

The potential difference decreases. The potential difference increases. The current decreases. The resistance increases.

6/6

Lesson summary: Domestic electricity review

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This was the final lesson in the unit Electricity (FT).

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