Laws of Motion — Physics STD 11 Science — Question

What do you mean by anisotropy? Name the solid that shows anisotropy.

Is potential energy on the surface of earth always zero?

When an object slides on a plane inclined at an angle to the horizontal, what will be its acceleration?

An object is moving on a frictionless horizontal plane. Is there any force acting on it in the following conditions when the body (1) is moving with same velocity (ii) is moving with the same speed?

Avarage translational K.E. of a gas molecule at absolute temperature T, how much is it?

A vessel with adiabatic walls has two chambers. One chamber is filled with gas and the other is a vacuum. The room divider suddenly bursts. What will be the change in the internal energy of the gas in this process?

State the factors on which the speed of a wave travelling along a stretched ideal string depends.

What is momentum and on which factors it depends?

What is moment of inertia of a solid sphere about its diameter?

What happens to coefficient of friction, when weight of body is doubled?