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Natural Science Grade 5: Term 3&4 > NS Term 3 > Flashcards

Flashcards in NS Term 3 Deck (15)
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1

Where does mains electricity come from?

Power stations.

2

The flow of electricity:
Power Stations, ____, Pylons, Step-down Substations, _____, Wall Sockets

Step-up Transformers; Electricity Boxes

3

All power sources need a source of ______.

Energy.

4

Coal-fired power stations use ____ which they ____.

Coal; burn

5

The heat is used to make _______.

Electricity

6

South Africa uses the following sources of energy to make electricity:
Water: ___________
____: Wind turbines
____: Nuclear power plants
Gas: __________
Sun: __________

Hydro-electric power; wind; nuclear; gas turbines; solar panels

7

Check your _____ regularly.

Appliances

8

The ______ do not work correctly (faulty).

Controls

9

Parts are ____.

Loose

10

Only use ________ plugs.

SABS- approved

11

Do not _____ a wall socket. Use an _____.

Overload; adaptor

12

Do not pull the plug out form the _____.

Cord

13

Do not stick your _____, _____ or anything else into the wall socket.

Fingers; bare wires

14

Do not use cords that are _____ or _____; make sure that they are ________ insulated.

Worn; frayed; completely

15

Do not put cords near _____, under ____ or where ______ _____.

Heat; mats; people walk.