Physics

Question 1

Distance

Answer 1

Length between two points

Question 2

Speed

Answer 2

Distance traveled divided by time taken

Question 3

Time

Answer 3

How long it takes to do something

Question 4

Magnet

Answer 4

Pieces of metal that attract other substances.

Question 5

Magnetic material

Answer 5

Materials magnets attract. For example, iron, steel, cobalt and nickel, as well as other magnets.

Question 6

Poles

Answer 6

Two opposite ends of a magnet at which the magnetic field is at its strongest.

Question 7

Magnetic field

Answer 7

The space around a magnet that exerts a force on magnets and magnetic materials.

Question 8

Magnetic field lines

Answer 8

The directions of forces in a magnetic field are represented by magnetic field lines.

Question 9

Compass

Answer 9

A small magnet allowed to move freely on a pivot. The direction the compass needle points is the direction of the magnetic field lines.

Question 10

Alloy

Answer 10

A mixture of two metals. Steel contains iron and cobalt

Question 11

Current electricity

Answer 11

The steady flow of charge though wires and circuits.

Question 12

Static electricity

Answer 12

When two objects come into contact, electrons can transfer between them. When this happens, both objects become charged with static electricity.

Question 13

Charged particles

Answer 13

When two objects come into contact, electrons can transfer between them. When this happens, both objects become charged with static electricity.

Question 14

Conductors

Answer 14

A substance that allows energy, such as heat or electricity, to pass through it easily.

Question 15

Insulator

Answer 15

A substance that does not allow energy, such as heat or electricity, to pass through it easily.

Question 16

Negative

Answer 16

Electrons have a negative charge. If an object gains electrons, it becomes negatively charged.

Question 17

Positive

Answer 17

An object that has lost electrons takes on a positive charge.

Question 18

Components

Answer 18

Objects in an electric circuit. The conversion of electrical energy into other forms takes place when that energy passes through these objects.

Question 19

Circuit diagram

Answer 19

An electronic circuit drawn using symbols.

Question 20

Current

Answer 20

The steady flow of charge though wires and circuits.

Question 21

Ammeter

Answer 21

Measures the current flowing through a wire. Ammeters are connected in series.

Question 22

Potential difference

Answer 22

When there is a point of high electrical energy and a point of low electrical energy in a complete circuit, we say that there is a difference in electrical potential energy between those points. Provides the energy that pushes electrons around a circuit. It is needed to make a current flow.