PART - 2 CH - 12 Kinetic Theory — Physics STD 11 Science — Question

Why are gas thermometers more sensitive than mercury thermometers?

A body of mass 2kg initially at rest moves under the action of an applied horizontal force of 7N on a table with coefficient of kinetic friction = 0.1. Compute the: Work done by the net force on the body in 10s.

The sign of work done by a force on a body is important to understand. State carefully if the following quantities are positive or negative: Work done by gravitational force in the above case.

Why it is easier to wash clothes with soap solution rather than pure water?

The velocity of a particle is towards west at an instant. Its acceleration is not towards west, not towards east, not towards north and not towards south. Give an example of this type of motion.

A Gipsy car has a canvass top. When the car runs at high speed, the top bulges out Explain.

Which one among a solid, liquid and gas of the same mass and at the same temperature has the greatest internal energy and which one has the least?

What propagates faster-a radio signal or sound in the air?

Is it possible to have interference between the waves produced by two violins? Why?

Do all solids expand on heating? Name the solid that contracts on heating.