Physics-Motion

Question 1

Distance

Answer 1

The length of space between two points

Question 2

Speed

Answer 2

the rate at which someone or something moves or operates or is able to move or operate.

Question 3

Time

Answer 3

the indefinite continued progress of existence and events in the past, present, and future regarded as a whole.

Question 4

Distance-Time Graph

Answer 4

A distance-time graph shows how far an object has travelled in a given time.

Question 5

Magnet

Answer 5

A piece of metal that attracts other materials.

Question 6

Magnetic Material

Answer 6

Materials that are attracted to magnets eg. iron, cobalt, nickel.

Question 7

Alloy

Answer 7

A mixture of two metals , steel contains iron and cobalt.

Question 8

Poles

Answer 8

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

Question 9

Magnetic Field

Answer 9

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

Question 10

Magnetic field lines

Answer 10

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

Question 11

Compass

Answer 11

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 12

Current Electricity

Answer 12

The steady flow of charge though wires and circuits.

Question 13

Static electricity

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

Charged particles

Answer 14

The steady flow of charge though wires and circuits.

Question 15

Conductor

Answer 15

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

Question 16

Insulator

Answer 16

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

Question 17

Negative

Answer 17

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

Question 18

Positive

Answer 18

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

Question 19

Components

Answer 19

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

Question 20

Circuit diagram

Answer 20

An electronic circuit drawn using symbols.

Question 21

Current

Answer 21

The steady flow of charge though wires and circuits.

Question 22

Ammeter

Answer 22

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

Question 23

Potential difference

Answer 23

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.

Question 24

Voltage

Answer 24

Potential difference in a circuit is also called voltage.

Question 25

Resistance

Answer 25

A measure of how difficult it is for an electric current to pass through a substance.

Question 26

Scalar

Answer 26

A measurement that has size (magnitude) only. They do not have direction associated with them. E.g. distance, speed, time.

Question 27

Vector

Answer 27

A quantity that has magnitude and direction associated with them. e.g. displacement, velocity.

Question 28

Displacement

Answer 28

is the distance an object travels in a certain direction. E.g. 50 metres North.

Question 29

Velocity

Answer 29

is the speed of an object in a given direction. E.g. 10 m/s south.

Question 30

Acceleration

Answer 30

When speed changes over time, it is called acceleration.

Question 31

Scalar

Answer 31

A measurement that has size (magnitude) only. They do not have direction associated with them. E.g. distance, speed, time.

Question 32

Vector

Answer 32

A quantity that has magnitude and direction associated with them. e.g. displacement, velocity.

Question 33

Displacement

Answer 33

is the distance an object travels in a certain direction. E.g. 50 metres North.

Question 34

Velocity

Answer 34

is the speed of an object in a given direction. E.g. 10 m/s south.