PPSC Physics Topic 3 MCQ Test With Answer

PPSC Physics lecturer test contains questions about Thermal Properties Of Matter. This topic deals with the reaction of different states of matter when studied under different levels of thermal conditions. Learning about how different types of matter behave when exposed to different temperatures has enabled physicists and scientists to invent thousands of useful items. In the PPSC Physics online test, you can attempt the type of questions that are usually asked about Thermal Properties Of Matter in the PPSC physics test. The importance of the matter and its interaction with different conditions of temperature makes it an important concept in the understanding of the subject matter of physics.

All candidates can prepare for PPSC Physics test on our free IlmKiDunya.com online test preparation portal. By taking this test, you can expand the understanding you already have of this topic. Attempt the PPSC Physics test MCQs regarding this topic right now and test your abilities!

MCQ's Test For PPSC Physics Topic 3 Thermal Properties of Matter

Try The MCQ's Test For PPSC Physics Topic 3 Thermal Properties of Matter

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PPSC Physics Topic 3 Thermal Properties of Matter

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Question # 1

Specific heat a different substances varies becouse of

Question # 2

The specific heat of liquid

Question # 3

A frictionless heat engine can be 100% efficient only if its exhaust temperature is

Question # 4

The process in which no heat enters or leaves the system is called.

Question # 5

Which law states that a change in the internal energy of a closed thermodynamic system is equal to the difference between the heat supplied to the system and teh amount of work by the system on the surrounding.

Question # 6

An ideal engine can be 100% efficient only if its exhaust temperatute.

Question # 7

How does heat transfer between objects.

Question # 8

A perfect gas is one whose

Question # 9

The process in which a system undergoes a change of state at constant volume.

Question # 10

On which parameter internal energy of an ideal gas depends upon.

Question # 11

The mechanical equivalent of heat is.

Question # 12

If T1 and T2 are source and sink temperature respectively Carnot efficiency is.

Question # 13

Which of the following pairs represent units of the same physical quantity.

Question # 14

In which temperature range water decreases in volume with increasing temperature.

Question # 15

The product of mass and specific heat of a substance is called.

Question # 16

Which law states that if two systems are in thermal equilibrium with a third system they are also in the thermal equilibrium with each other.

Question # 17

What happens to internal energy of a piece of lead when hammered.

Question # 18

Efficiency of a Carnot engine depends on

Question # 19

Which of the following has negative specific heat

Question # 20

The amount of heat needed per unit mass to raise the temperature of a system one degree at constant pressure is numerically aqual to

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PPSC Physics Chapter 3 Important MCQ's

Sr.# Question Answer
1 What makes the air coming out of a punctured tyre cool.
A. Isothermal expansion
B. Adiabatic expension
C. Flow at high speed
D. Atmospheric pressure
2 Which gas strictly obeys gas laws.
A. Hydrogen gas
B. Inert gas
C. Ideal perfect gas
D. Helium gas
3 The pressure of a gas is directly proportions to
A. Mean velocity of the molecules
B. Mean square velocity of the molecules
C. Root mean square velocity of the molecules
D. Instantaneous velocity of the molecules
4 Which of the following is a thermodynamic potential
A. Internal energy
B. Enthalpy
C. Gibb's free energy
D. All of these
5 Why an even Carnot engine Carnot give 100% efficiency.
A. We cannot find ideal sources
B. We cannot eliminate friction
C. We cannot reach absolute zero temperature
D. We cannot remove heat
6 A mercury thermometer has
A. Low conductivity and low thermal capacity
B. High conductivity and high thermal capacity
C. Low conductivity and high thermal capacity
D. High conductivity and high thermal capacity
7 How much lce will melt by 50,000 J of heat.
A. 120 J
B. 130 g
C. 140 J
D. 150 g
8 The specific heat of liquid
A. Decreases with temperature
B. Increases with temperature
C. Remains constant with change in temperature
D. Increases with pressure
9 An ideal engine can be 100% efficient only if its exhaust temperatute.
A. Equal to input temperature
B. Less than is input temperature
C. More than its input temperature
D. 0 oC
10 When the temperature of a body is equal to that of the surrounding then the body appears
A. Dull black
B. Red hot
C. In thermal equilibrium
D. To be cold

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