Physics MCQ - Work Energy and Power
When a body falls freely, the potential energy due to its height converted into kinetic energy due to its motion.
Heat energy or thermal energy of an object is the total thermal kinetic energy and thermal potential energy of all its atoms and molecules. So, we can say that heat energy of an object is the total energy of the molecules of the object
A rocket works by expelling gases from one end at a very high speed which inturn, upthrust the rocket. This illustrates law of conservation of momentum.
