Measuring Current and Potential Difference

• Science
• Lower Secondary (Key Stage 3)

Measuring Current and Potential Difference

Which circuit(s) show current being measured correctly?

1. 
2. 
3. 
4. 

Which voltmeter is measuring something different?

1. 
2. 
3. 
4. 

What is wrong here?

Complete the circuit to show the symbols of the component used to measure potential difference and the component used to measure current.

V

A

What do we call the flow of electrons around a circuit?

1. Current
2. Potential difference
3. Resistance
4. Energy

Which component do we use to measure current?

1. Voltmeter
2. Ammeter
3. Resistor
4. Motor

Which component makes electricity flow in a circuit?

1. Switch
2. Fuse
3. Cell
4. Resistor

Which component can stop or start the current flowing?

What do we call 2 or more cells combined?