The total mechanical energy of a system is conserved if the forces that act on it is called

The total heat content/potential energy of a system is called

The value of total mechanical energy of a particle is SHM is

STATEMENT -1 : When a planet revolves around Sun in an elliptical orbit, the work done Sun's gravitational force on the planet remains zero for any value of displacement. and STATEMENT -2 : The mechanical energy of Sun planet system remains conserved throughout the motion of planet.

The variation of potential energy U of a system is shown in figure. The force acting on the system is best represented by

Show that the sum of kinetic energy and potential energy (ie, total mechanical energy) is always conserved in the case of a freely falling body under gravity (with air resistance neglected from a height by finding it when (i) the body is at the top c) the body has fallen a distance in the body has reached the ground.

Mechanical energy and kinetic energy

In the case of conservative force

The potential energy of the system is represented in the first figure. The force acting on the system will be represented by

The total mechanical energy of a spring mass system in simple harmonic motion is E=1/2momega^2 A^2 . Suppose the oscillating particle is replaced by another particle of double the mass while the amplitude A remains the same. The new mechanical energy will

Is the total mechanical energy conserved for a falling body if we include the effect of air resistance during its fall?