P2.1.3 - Potential Difference

Question 1

Which circuit component pushes charges (electrons) around a circuit?

Answer 1

Cells or batteries

Question 2

The push given to charges, to make them move around a circuit can also be called the…

Answer 2

potential difference (p.d)

Question 3

A charge that has been pushed with a lot of force is said to have a ______ potential difference.

Answer 3

large

Question 4

A charge that has been pushed with a small force is said to have a ______ potential difference.

Answer 4

small

Question 5

What do we use to measure potential difference (the amount of ‘push’ charges have around a circuit)?

Answer 5

a voltmeter

Question 6

What are the units of potential difference (the amount of push a charge has as it moves around a circuit)?

Answer 6

Volts

Question 7

The amount of push that a battery or cell can give to charges (electrons) in a circuit is called the…

Answer 7

Potential difference

Rating

Voltage

Question 8

How would you connect a voltmeter to measure the potential difference in this circuit?

Answer 8

Always connect the voltmeter in ‘parallel’ aross the component you want to measure the potential difference of.

Question 9

How can you increase the potential difference (push) of a circuit?

Answer 9

Add more cells (make a bigger battery)

Question 10

What is meant by the ‘rating’ of a circuit component?

Answer 10

The rating tells you have much potential difference (push) the component is designed to work at.