Multiple Choice Questions
- A Level Physics - Thermal physics -
Time: 40 minutes
Created and Programmed by Vivax Solutions
1
The internal energy of an object is,
2
At absolute zero temperature,
3
A gas-filled balloon floats on the surface of water. It is taken deep into water and released. The balloon,
4

A column of air is trapped in the tube by a drop of mercury and the diagram is not drawn to scale. Which inequality is true?
5
The specific heat capacity of a certain metal is 340 JKg-1K-1. The heat required to increase the temperature of a block of 2kg by 20C is,
6
The kinetic energy of an air molecule of a gas is proportional to the absolute temperature.
7
The speeds of five molecules in an ideal gas are 2 cm/s, 5 cm/s, 7 cm/s, 8 cm/s and 9 cm/s. The root mean square speed is,
8
A test tube is partially filled with alcohol and then placed vertically in a large bowl of water at 00C. After a while,
9

The above graph is produced from a fixed mass of gas; x and y axes represent,
10
The product of pressure and volume of 1 mole of an ideal gas is plotted against the absolute temperature. Its gradient is,
11
The piston of a bicycle pump is pushed down by a reasonable force. If the rise in temperature is negligible,
12

If the temperature is maintained at 270C, the trapped air column,
13
The volume of an ideal gas is quadrpled. Its density,
14
The role of a pressure cooker shows that
15
10g of water that is at 200C is mixed with 30g of water at 500C. The final temperatue of the mixture is,
16
Oxygen deviates from the ideal gas equation,
17
When you come out of a shower cubicle, you feel cold. Which statement is true?
18

When the valve A is opened while keeping the temperatue constant, the ultimate net pressure is,
19
You are given an ice cube of 20 g and 20 g of water at 00C in order to cool down a cup of hot coffee. Which statement is true?
20
A flask is half filled with water and a thermometer through a stopper shows the temperature of the water. It is brought to the boiling point with the aid of a gas burner. Then, the flask was inverted and brought under the flowing water from an opened tap. The water boils again. This is because,
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