IGCSE Physics Paper-1: Specimen Questions with Answers 52 - 53 of 109

Question number: 52

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Question

The weights of three objects are given. Which is heaviest?

 Comparing the weights of three objects.

Comparing the Weights of Three Objects.

In figure three positions of balance are shown in those comparisons of three objects are shown.

Choices

Choice (4) Response

a.

object 3

b.

object 1

c.

object 2

d.

Question does not provide sufficient data or is vague

Answer

a.

Explanation

Here in above we shows that

In (a) diagram we shows that object 1 is heavier than object 2

In (b) diagram we shows that object 3 is heavier than object 2

So, we can say that objects 1 & 3 are heavier than the object 2

But from (c) diagram we can see that object 3 is heavier than the object 1. Therefore object 3 is heaviest than object 1 and 2.

Question number: 53

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Question

In which of the circuits below both lamps are protected by the fuse?

Choices

Choice (4) Response

a.

Circuit diagram consists of two bulbs and a fuse

Circuit Diagram Consists of Two Bulbs and a Fuse

In given figure two bulbs and a fuse are connected with a. c. power supply.

b.

Circuit diagram consists of two bulbs and fuse

Circuit Diagram Consists of Two Bulbs and Fuse

In given figure two bulbs and a fuse are connected with a. c. power supply. (b)

c.

Circuit consists of two bulbs and a fuse

Circuit Consists of Two Bulbs and a Fuse

In given figure two bulbs and a fuse are connected with a. c. power supply.

Circuit consists of two bulbs and a fuse

Circuit Consists of Two Bulbs and a Fuse

In given figure two bulbs and a fuse are connected with a. c. power supply.

d.

Circuit diagram consists of two bulbs and a fuse in different.

Circuit Diagram Consists of Two Bulbs and a Fuse in Different.

In given figure two bulbs and a fuse are connected with a. c. power supply

Answer

d.

Explanation

Fuse is a simple electrical part, which consist of wire and terminal at each end. It protects the circuit in the event of a large current. When large current pass fuse make circuit open. Thus fuse should be connected in series. For choice 4 only fuse protect both the lamps because in it fuse connected in series with both the lamps.