We can produce heat by________________?
A. Frictional process
B. Chemical processes
C. Electrical processes
D. All of the above
Physics MCQs with Answers
Metabolism is the name of a process in which energy transformation takes place within______________?
A. Heat engine
B. Human body
C. Atmosphere
D. Laboratory
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
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
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
Boyles law helds for ideal gases in________________?
A. isochoric processes
B. isobaric processes
C. isothermal processes
D. adiabatic processes
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
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
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
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
