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Physics 914 MCQs [All-Courses]

Physics is a core science subject that deals with the study of matter, energy, motion, force, heat, light, electricity, magnetism, and modern physics concepts. It plays a vital role in competitive exams such as PPSC, FPSC, NTS, OTS, KPPSC, BPSC, AJKPSC, CSS, and PMS, where questions test conceptual understanding, numerical problem-solving, and application of laws and formulas.

We prefer mercury as a thermometric substance because______________?

A Over a wide range of temperature its expansion is uniform

B It does not stick to thermometer glass

C It opaque to light

D All of above

Review Detailed Answer

Correct Answer: All of above

In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because_______________?

A Mercury takes a long time to contract

B The amount of mercury use is very small

C The capillary tube has a small constriction near the bulb

D The capillary tube is very narrow

Review Detailed Answer

Correct Answer: The capillary tube has a small constriction near the bulb

Which one is not an example of adiabatic process ?

A rapid escape of air from a burst tyre

B rapid expansion of air

C conversion of water into ice in refrigerator

D cloud formation in the atmosphere

Review Detailed Answer

Correct Answer: conversion of water into ice in refrigerator

If the volume of a gas is held constant and we increase its temperature then_______________?

A its pressure is constant

B its pressure rises

C its pressure falls

D any of above

Review Detailed Answer

Correct Answer: its pressure rises

Boyles law helds for ideal gases in________________?

A isochoric processes

B isobaric processes

C isothermal processes

D adiabatic processes

Review Detailed Answer

Correct Answer: isothermal processes

Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their_____________?

A volume

B pressure

C absolute temperature

D time

Review Detailed Answer

Correct Answer: absolute temperature

If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of______________?

A Boyles law

B Charles law

C Ideal gas law

D Avagadros law

Review Detailed Answer

Correct Answer: Charles law

The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?

A 1 atmosphere

B 1 Newton per square meter

C 1 Pascal

D data is insufficient

Review Detailed Answer

Correct Answer: 1 atmosphere

Metabolism is the name of a process in which energy transformation takes place within______________?

A Heat engine

B Human body

C Atmosphere

D Laboratory

Review Detailed Answer

Correct Answer: Human body

We can produce heat by________________?

A Frictional process

B Chemical processes

C Electrical processes

D All of the above

Review Detailed Answer

Correct Answer: All of the above

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Physics 914 MCQs [All-Courses]

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All Topics 914

We prefer mercury as a thermometric substance because______________?

In a clinical thermometer the mercury in the capillary tube does not contract once removed from the patient because_______________?

Which one is not an example of adiabatic process ?

If the volume of a gas is held constant and we increase its temperature then_______________?

Boyles law helds for ideal gases in________________?

Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their_____________?

If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of______________?

The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?

Metabolism is the name of a process in which energy transformation takes place within______________?

We can produce heat by________________?