IGCSE Physics Paper-1: Specimen Questions with Answers 61 - 63 of 149

Question number: 61

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Question

Mercury-in-glass thermometer reaches point X at 0 °C and point Z at 100°C. Find location if temperature is below the ice-point?

Thermometer with marking W, X, Y and Z

Thermometer with Marking W, X, Y and Z

Choices

Choice (4)

a.

point X

b.

point Z

c.

point Y

d.

point W

Answer

d.

Explanation

Here given that At point x is 0 °C

And at point Z is 100 °C

Now as we know that

The temperature of ice is zero or below zero

Then point below the temperature of ice point is W.

Question number: 62

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Question

Which radiations are stopped by a sheet of paper?

Choices

Choice (4)

a.

γ- rays

b.

β- particles

c.

X-rays

d.

α- particles

Answer

d.

Explanation

Here as we know that

Α-particles are fast moving helium atoms. They have high energy typically in the MeV range, but due to their large mass their range is small and they are stop by just few inches of air, or paper.

Question number: 63

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Question

Which statement is correct?

Choices

Choice (4)

a.

Weight is a force, measured in kilograms.

b.

Mass is a force, measured in Newton.

c.

Mass is a force, measured in kilograms.

d.

Weight is a force, measured in Newton.

Answer

d.

Explanation

Here as we know that the weight of any object means gravitational force between earth and the object.

If the object has more mass then it has more weight. So we can say that Weight is a force therefore we can write unit of it is newton.

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