When a partially floating body is pressed down a little, its weight, will increase. (T or F)

Weight is a scalar quantity. (T or F)

A body may have zero weight and a finite mass. (T or F).

When you are climbing stairs, work done by the weight is positive. (T or F).

An air chamber of volume V has a neck area of cross section a into which a ball of mass mjust fits and can move up and down without any friction (Fig.14.27). Show that when the ball is pressed down a little and released , it executes SHM. Obtain an expression for the time period of oscillations assuming pressure-volume variations of air to be isothermal [see Fig. 14.27

When K.E. of a body is increased by 300 %, the momentum of the body is increased by

When a force is applied to a body, state its effect.

When the height of an object is increased, what happens to its potential energy?

Find out the increase in moment of inertia I of a uniform rod coefficient of linear expansion alpha about its perpendicular bisector when its temperature is slightly increased by DeltaT .

When a mass is attached to a spring, its length is increased by 20 cm. It is now further lowered and releases. The time period is