# Potential difference

In this lesson we will learn about potential difference including how to measure it and how to calculate it using the energy transferred and charge flow.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, letâ€™s see what you can remember from this topic. Hereâ€™s a quick quiz!

Q1.What is this a definition for: "the flow of charge" ?

1/8

Q2.Which component is used to measure the current in a circuit?

2/8

Q3.What is the unit of measure for current?

3/8

Q4.What symbol is used in equations to represent current?

4/8

Q5.Which charged particle moves around the circuit, allowing the flow of charge?

5/8

Q6.Which of these equations is the correct equation linking charge, current and time?

6/8

Q7.If 450 C flow through a desk lamp in 9 seconds, what is the current?

7/8

Q8.A current of 3 A flows through a resistor. When the circuit is switched on a charge of 24 C flows. How long is the circuit turned on for?

8/8

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, letâ€™s see what you can remember from this topic. Hereâ€™s a quick quiz!

Q1.What is this a definition for: "the flow of charge" ?

1/8

Q2.Which component is used to measure the current in a circuit?

2/8

Q3.What is the unit of measure for current?

3/8

Q4.What symbol is used in equations to represent current?

4/8

Q5.Which charged particle moves around the circuit, allowing the flow of charge?

5/8

Q6.Which of these equations is the correct equation linking charge, current and time?

6/8

Q7.If 450 C flow through a desk lamp in 9 seconds, what is the current?

7/8

Q8.A current of 3 A flows through a resistor. When the circuit is switched on a charge of 24 C flows. How long is the circuit turned on for?

8/8

# 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 â€˜Resume Videoâ€™ 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 â€˜Nextâ€™ below.

Quiz:

# Potential Difference

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

Q1.What is the unit of measure of potential difference?

1/6

Q2.Which of these definitions best describes potential difference?

2/6

Q3.Which of these statements best describes the size of an electrical current?

3/6

Q4.Which of these descriptions best describes how to measure the potential difference across a resistor?

4/6

Q5.If a charge of 25 C flows through a lamp and delivers 12 J of energy. What is the potential difference across the lamp?

5/6

Q6.A 3 V cell is used to transfer 15 mJ of energy to a resistor. How much charge must flow through the resistor?

6/6

Quiz:

# Potential Difference

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

Q1.What is the unit of measure of potential difference?

1/6

Q2.Which of these definitions best describes potential difference?

2/6

Q3.Which of these statements best describes the size of an electrical current?

3/6

Q4.Which of these descriptions best describes how to measure the potential difference across a resistor?

4/6

Q5.If a charge of 25 C flows through a lamp and delivers 12 J of energy. What is the potential difference across the lamp?

5/6

Q6.A 3 V cell is used to transfer 15 mJ of energy to a resistor. How much charge must flow through the resistor?

6/6

# Lesson summary: Potential difference

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Dance