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08 Making Use Of Electricity

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08 Making Use Of Electricity
Living Science (Second Edition) Unit Test 2

8ʳ Making use of electricity

S2 Science Test
Unit 8ġ Making use of electricity
Name:____________________________

ΰʳ ʳ ʳ α

Time and Marks

Class: ____________________________

Part A: 35 min / 100 marks

Date: ____________________________

Parts A & B: 45 min / 120 marks

Note:

ʳ

1

Attempt ALL questions.

2

Write your answers in the spaces provided on the Answer Sheets.

ʳ

Part A (Level 1)
A

True or false questions

(5 marks, 1 mark each)

Study each of the following statements. Write ‘T’ for a true statement and ‘F’ for a false statement on the answer sheets. 1

Electric cells store electrical energy.

2

A bulb in a circuit will light up once it is connected to one end of a battery.

3

When the resistance of a circuit increases, the current flows around the circuit will become smaller.

4

Two fuses rated 15 A connected in series allow a current larger than 30 A to flow through them.

5

The live wire in a plug is blue in colour.

B

Multiple-choice questions

(20 marks, 2 marks each)ġ

Choose the correct answer for each of the following questions.
1

Which of the following circuits has the bulb lighted up when the circuit is closed?
A

2

B

C

Which of the following is an electrical conductor?
A

Rubber

B

Wool thread

C

Iron nail

D

Wooden board

© Oxford University Press 2005

- 12 -

D

Living Science (Second Edition) Unit Test 2

3

4

Which of the following copper wires has the smallest resistance?
A

Short and thick

B

Short and thin

C

Long and thick

D

Long and thin

ʳ

Which of the following electric components has to be used in a dimmer switch or a volume controller?
A

5

B

C

D

C

D

Which of the following is a parallel circuit?
A

6

8ʳ Making use of electricity

B

In general, the electrical components in a circuit have certain resistance. When an electric current flows through them, part of the electrical energy is lost in the form of

7

A

chemical energy.

B

potential energy.

C

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