Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Grd.6 NS Term 4 > Electricity > Flashcards

Electricity Flashcards

1
Q

What is electricity?

A

Electricity is a form of energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name three other forms of energy that electricity is usually converted to

A

. Light
. Movement
. Sound

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

For an appliance to work it needs a source of _________.

A

Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a cell?

A

They provide the energy needed for electrons to move around in an electric circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does a circuit do?

A

A circuit provides a pathway for electricity to flow from an energy source, such as a cell, to where it is needed and back to the source

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The pathway needs to form a _______ loop.

A

Closed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a circuit board?

A

Metal pathways printed on a board

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name three forms that electrical circuit can take.

A

Closed loop made of electrical wires
Circuit board
Pylons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Electric circuits are made of different parts. These parts are called _________.

A

Components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the components of an electric circuit?

A

. A source of energy
. Conducting material
. Devices
. Switches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is “A source of energy”?

A

Each circuit needs a source of electrical energy. Cells and batteries are one source of electrical energy in an electric circuit.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 2 sides of a battery called?

A

The positive and negative side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How do you connect 2 batteries correctly?

A

The positive side of one battery must be connected to the negative side of the next battery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is “Conducting material”?

A

A materials that electricity can flow through

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What do conducting materials do?

A

They carry the electric current from the energy source to the other parts of the electric circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is an electrical current?

A

The movement of electric charges through a conductor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are most conducting wires made of?

A

Copper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the wires usually covered by?

A

Plastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Why are most wires covered in plastic

A

Plastic doesn’t conduct electricity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the layer of plastic called?

A

Insulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Why are electrical wires insulated?

A

To keep the electrical current from flowing where it is not wanted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is “Devices”?

A

Man-made objects made to do a specific job. Different devices are used in electric circuits to convert electrical energy to other forms of energy such as light, sound or movement.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Name some examples of devices.

A

Bulbs
Buzzers
Motors

24
Q

Bulbs convert electrical energy into ________ energy.

A

Light

25
Q

The light a bulb gives of is called the ________ energy.

A

Output

26
Q

We say that a bulb is a/an __________ device.

A

Output

27
Q

What are 3 types of bulbs?

A

Compact fluorescent bulb
Incandescent bulb
Torch bulb

28
Q

What is a buzzer?

A

An electrical device that makes a buzzing sound

29
Q

A buzzer converts the electrical energy to ________ energy.

A

Sound

30
Q

Electric motors convert electrical energy into _________ energy.

A

Movement

31
Q

What happens when electrical current passes through a motor?

A

It causes the shaft to spin

32
Q

How can the spinning movement of the shaft be used?

A

Household appliances: fans, washing machines
Tools: drills, grinders

33
Q

What do you call a circuit with gaps in it

A

Broken

34
Q

What is a switch?

A

It can be added to a circuit to start and stop the flow of an electric current.

35
Q

When are switches useful?

A

When you want to turn an appliance on or off without having to plug it in or unplug it

36
Q

True or false.
All electrical appliances have switches.

A

True

37
Q

What is a circuit diagram

A

Diagram of electric circuit, drawn using standard symbols for electrical components

38
Q

What is the difference between a cell and a battery?

A

A battery is made up of two or more cells

39
Q

Correct the sentence.
Most metals conduct electricity and so does water, including lemon water.

A

Lemon=salty

40
Q

Why is it important to know which materials conduct electricity?

A

It can help you use electricity safely. It may even save your life!

41
Q

Why do we get a shock when we touch an uninsulated wire?

A

Our bodies are made mostly of water. This means that we can conduct electricity. If electricity goes through a person’s body, it can cause serious damage or even kill the person

42
Q

What should you use to put out an electrical fire?

A

NEVER PUT IT OUT WITH WATER!!
Use sand or a chemical fire extinguisher instead.

43
Q

What are insulators?

A

Materials that do not allow electricity to go through

44
Q

List some insulating materials.

A

Plastic
Rubber
Ceramics
Glass
Most other materials that are not made of metal

45
Q

What do you do if the insulation of an electrical cord is damaged?

A

Replace the cord before the appliance is used again. It must be replaced by an adult who knows how to do it safely. A qualified electrician must work on damaged wiring in a household circuit

46
Q

Transmission lines are attached to pylons by insulators. What are these usually made of?

A

Ceramic material or toughened glass

47
Q

What do the insulators on pylons do?

A

Stop the electricity from going from the cables into the metal pylons

48
Q

What is the input device for most circuits?

A

A battery

49
Q

What types of energy does the falling water in a watermill go through?

A

Starts: potential energy
Turns to: movement energy that makes the wheel turn

50
Q

What are the 3 parts of an electrical energy system?

A

Input
Output
Process

51
Q

What is “input”?

A

What goes into the circuit
It can be the electrical energy from a battery or mains electricity

52
Q

What is “output”?

A

What is released from the circuit
It can be light from a bulb or heat from the element of a heater

53
Q

What is “process”?

A

The manner in which the input is changed into the output. For example, the electric current in a circuit heats up the element of a heater. Electrical energy is changed into heat

54
Q

What can we use a systems diagram for?

A

To show what happens in an electrical system

55
Q

What is mains electricity?

A

Electricity from a power station that is transferred in a circuit to our homes and back to the power station

56
Q

What is the most common source of energy in SA?

A

Coal

Grd.6 NS Term 4 (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions