Fill in the blank:- 1. The capacity to do work is called _____________. 2. Work=force x ____________. 3. Stored up energy is called ______________. 4. Energy possessed by a body due to its motion is called as _________ energy. 5. Satellite use _________ for electricity production. 6. Energy stored in plants is in the form of ______________energy. 7. Sunlight contains ____________ energy. Q.2 Name the following:- 1. Form of energy. 2. Conventional sources of energy/ Non-renewable sources. 3. Non-conventional source of energy/ Renewable sources. 4. Never ending sources 5. Hydro-electrical power plant. 6. Machine that work on solar energy. Q.3 Answer the following:- 1. Which energy is used when a ball that has been throwing up comes down? 2. Which form of energy does a match stick contain? 3. Why do we sweat while cycling? 4. What is potential energy? 5. What is kinetic energy?