IGCSE Physics Paper-1: Specimen Questions with Answers 18 - 21 of 149

Question 18

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Question

MCQ▾

A tunnel has a length of 50 km. A jeep takes 300 sec to travel between the two ends of the tunnel. What is average speed of the jeep?

Choices

Choice (4)

a.

2.5 km/h

b.

16.6 km/h

c.

10 km/h

d.

150 km/h

Answer

c.

Explanation

Here to find the average speed we can use the formula for this is given as,

Here we have time is 300 sec. Then we can write 5 min

Question 19

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Question

MCQ▾

man walk and shows start and end of the walk. How long did the walk take?

A stopwatch used to time for man walk

A Stopwatch Used to Time for Man Walk

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Choices

Choice (4)

a.

45.7s

b.

47.0 s

c.

46.0s

d.

46.5s

Answer

c.

Explanation

From above figure, we can note down the start time is 15.0 s and end time is 34.0 s. Therefore time for man walk is given as,

Question 20

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Question

MCQ▾

Find most stable arrangement to hold a flask of liquid.

Choices

Choice (4)

a.

Flask holding by stand and clamp
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b.

A flask holding by stand and clamp
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c.

A flask holding by stand and clamp more.
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d.

A flask holding by stand and clamps
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Answer

c.

Explanation

Most stable arrangement of flask in clamp

Most Stable Arrangement of Flask in Clamp

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In all others choices, the flask is keeping at some height. Thus they are not so stable.

Question 21

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Question

MCQ▾

Find average speed of molecules in 2 boxes if they are filled with air and one is on heater and the other is on bench.

Two metal boxes put on heater and bench

Two Metal Boxes Put on Heater and Bench

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Choices

Choice (4)

a.

Box X – Fast, Box Y – Slow

b.

Box X – Fast, Box Y – Zero

c.

Box X – Slow, Box Y – Fast

d.

Box X – Zero, Box Y – Fast

Answer

a.

Explanation

Here box X is on heater and the box Y is on bench.

Then molecule in box x is moving faster than box Y because of heat. And so molecule in box Y is moving slowly.

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