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10 Questions

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Physics MCQs: Motion and Mirrors

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Questions and Answers

What is the mass of the stone in air?

25.0g (correct)

5.0g

20.0g

12.0g

What is the height of the plane above the ground?

7 500 m

12 800 m

1 200 m (correct)

6 300 m

In which of the following is surface tension important?

The floating of a ship in water

The floating of a dry needle in water (correct)

The diffusion of a sugar solution across membrane

The floating of a balloon in air

What is the Celsius temperature corresponding to 600S on an arbitrary thermometer scale?

66.7°C Signup and view all the answers

What is the length of a brass rod after a temperature rise of 100K, if the expansivity of brass is 18 x 10^-6 K^-1?

2.0036m Signup and view all the answers

What is the difference in the amount of heat given out by 4kg of steam and 4kg of water when both are cooled from 100°C to 0°C?

334kJ Signup and view all the answers

What is the relative density of mercury?

13.0 Signup and view all the answers

What is the atmospheric pressure reading on the ground?

75cm of Hg Signup and view all the answers

What is the expansivity of brass?

18 x 10^-6 K^-1 Signup and view all the answers

What is the initial length of the brass rod?

2m Signup and view all the answers