Work and Energy

Work Energy theorem

Law of Conservation of Energy, Work Energy Theorem

STATEMENT-1: Kilowatt hour is a unit of power STATEMENT-2: Work done energy have same SI units. STATEMENT-3: Dimensions of work is ML^(2)T^(2).

Find the dimensional formula of the following question : (a) Density (b) Velocity (c) Acceleration (d) Momentum (e) Force (f) Work of energy (g) Power (h) Pressure

SI unit of work or energy is joule. _____

Work energy theorem is applicable

The system in which there is no exchange of matter, work, or energy from the surroundings is

Statements given below are incorrect. Write the correct statements. Q. The SI unit of work or energy is pascal (pa).

STATEMENT-1: Work done by the net force acting on a particle is equal to the change in its kinetic energy. STATEMENT-2: Change in potential energy is always equal to the work done by external forces. STATEMENT-3: Work energy theorem is not applicable, if the work is done by the non-conservative forces

Statement-1: Work and Heat are two equivalent form of energy. Statement-2: Work is transfer of mechanical energy irrespective of temperature-differene whereas heat is transfer of thermal energy because of temperature difference only.