Question 1

Which statement correctly describes the terminals of a battery?

Accepted Answer

A battery has one positive terminal and one negative terminal.

Answer

A battery has two positive terminals.

Answer

A battery has a neutral terminal and either a positive or a negative terminal.

Answer

A battery has two negative terminals.

Question 2

What is inside a battery that pushes the electric charges round a circuit?

Accepted Answer

chemicals that react

Answer

small magnets

Answer

mini-pumps

Answer

microscopic motors

Question 3

What is the name of the moving charges that carry electric current through a metal wire?

Accepted Answer

electrons

Answer

neutrons

Answer

protons

Answer

magnetrons

Question 4

What is the normal speed of electrons flowing through a metal wire?

Accepted Answer

a few millimetres per second

Answer

a few kilometres per second

Answer

a few metres per second

Answer

a few million metres per second

Question 5

Which objects can be used to make a simple battery?

Accepted Answer

two different metals, a weak acid solution and some wires

Answer

two different metals, liquid oil and some wires

Answer

two pieces of the same metal, a weak acid solution and some wires

Answer

two pieces of the same metal, liquid oil and some wires

Question 6

Which two of these objects have free electrons that can carry an electric current?

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