Current and Potential Difference

• Science
• Lower Secondary (Key Stage 3)

Current and Potential Difference

Electron

Shells

Proton

Neutron

Nucleus

Match the charge to the subatomic particle.

Electrons are

Protons are

Neutrons are 

Negative

Neutral

Positive

1. Attract
2. Repel

Current is the rate of flow of...

1. Electrons
2. Atoms

Current is measured in...

1. meters per second
2. Amps
3. kilograms
4. Newtons

The symbol for Amps is...

1. a
2. A

Good conductors of current are...

1. Metals
2. Non-metals

Electrons that are free to move between atoms are called...

1. Delineated electrons
2. Delocalised electrons

Which wire is attached to a battery? How do you know?

Several cell joined together is called a...

1. Battery
2. Prison

A battery creates a charge called a...

1. Circuit
2. Potential difference

A potential difference pushes .............. around a circuit.

1. Protons
2. Electrons

Potential difference is measured in...

1. Ohms
2. Volts

What is current?