Work, Energy and Power — Physics STD 11 — Question

Newtons laws are applicable in –

Two rotating bodies A and B of masses m and 2m with moments of inertia IA and IB (Ib > IA) have equal kinetic energy of rotation. If LA and LB be their angular momenta respectively, then,

We consider a thermodynamic system. If ∆U represent the increase in its energy and W the work done by the system, which of the following statements is true?

A particle moves in a circular path of radius 2 cm. If a particle completes 3 rounds, then the distance and displacement of the particle are –

As astronaut orbiting the earth in a circular orbit 120 km above the surface of Earth, gently drops a spoon out of space-ship. The spoon will ……….

At critical temperature the surface tension of a liquid …….

Which of the following example does not constitute a couple?

When a stone is dropped on the surface of still water, the waves produced are …….

Moment of inertia of a cube about an axis passing through the center of mass and perpendicular to face is -

Pressure exerted by a gas is …….