The national grid

In this lesson we will be learning about the National Grid and why it is an efficient way to transmit electricity across the country.

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

Question 6

Q1.Revision: Which wire is the fuse connected in series with in a 3 pin plug?

1/6

Q2.Revision: Select the two sources that supply a direct current to a circuit.

Select two (2) boxes

2/6

Q3.Which of these is the definition of power?

3/6

Q4.Which of these equations is correct?

4/6

Q5.An electric toothbrush has a power rating of 15 W. If it is used for 2 minutes. How much energy is transferred?

5/6

Q6.How much charge flows through a lamp, if 20 J of energy is transferred and it has a p.d. of 5 V across it?

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:

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

Question 6

Q1.Revision: Which wire is the fuse connected in series with in a 3 pin plug?

1/6

Q2.Revision: Select the two sources that supply a direct current to a circuit.

Select two (2) boxes

2/6

Q3.Which of these is the definition of power?

3/6

Q4.Which of these equations is correct?

4/6

Q5.An electric toothbrush has a power rating of 15 W. If it is used for 2 minutes. How much energy is transferred?

5/6

Q6.How much charge flows through a lamp, if 20 J of energy is transferred and it has a p.d. of 5 V across it?

6/6

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

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:

National Grid

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

Question 1

Question 2

Question 3

Question 4

Question 5

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

1/5

Q2.Revision: A fuse melts when ...

2/5

Q3.What happens at a step-up transformer?

3/5

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

4/5

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

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:

National Grid

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

Question 1

Question 2

Question 3

Question 4

Question 5

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

1/5

Q2.Revision: A fuse melts when ...

2/5

Q3.What happens at a step-up transformer?

3/5

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

4/5

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

5/5

Lesson summary: The national grid

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