Fundamentals of Electric Charge

Front

What is a material that is flammable?

Back

A material that burns easily.

Front

How is a negative charge determined?

Back

By the number of electrons.

Front

How is a positive charge determined?

Back

By the number of protons.

Front

What does it mean for an object to be neutral?

Back

It has an equal number of electrons (-) and protons (+). There is no overall charge.

Front

How do you calculate the overall charge of an object?

Back

By subtracting the number of protons (+) from the number of electrons (-).

Front

Can electrons move?

Back

Yes, they are the only sub-atomic particles that can move.

Front

Can protons and neutrons move?

Back

No, they are bound very strongly in the nucleus of the atoms.

Front

What does delocalised mean?

Back

Not in a fixed position, can move around freely (electrons).

Front

What is earthing a conductor?

Back

Connecting the conductor to ground or the Earth to prevent the build-up of electrical charge.

Front

What is electrostatic charge?

Back

The final charge of an object after friction has added (-) or removed electrons (+).