Heat and Thermodynamics MCQ question and answer with solution | Physics Gk MCQs

A. 80

B. 336

C. 720

D. 620

A. Flow of water

B. Release of compressed gas

C. Cooking gas

D. Melting the solid

A. 0.24

B. 0.48

C. 0.72

D. 0.96

A. -10

B. +10

C. +20

D. -20

A. Heat flow is negligible

B. There is no temperature variation between the two bodies, the rate of heat flow is constant or the heat flow is not based on time

C. The temperature of the bodies should rise evenly

D. Body temperature rise at the same rate

A. Any energy transfer that does not involve temperature difference in some way is not heat

B. Any energy transfer always requires a temperature difference

C. On heating, the length and volume of the object remain exactly the same

D. Whenever there is a temperature difference, heat is the only way of energy transfer

A. conduction

B. convection

C. radiation

D. reflection

A. Both (A) and (R) are true and (R) is the correct explanation of (A)

B. Both (A) and (R) are true, but (R) is not the correct explanation of (A)

C. (A) is true, but (R) is false

D. (A) is false, but (R) is true

A. Energy can only be created

B. Energy can only be destroyed

C. Energy is created and also destroyed

D. Energy is neither created nor destroyed

A. Kilowatt

B. Joule

C. Degree Kelvin

D. Ampere