Question

List three things that you do that need energy. Do you think you can do anything without energy?

Answer 1

Answer:

work that need energy -

playing

washing

running

we can't do anything because work done = force. displacement

                                           Or

Energy is very important in today's world. For example, we use different energy sources to generate the electricity we need for our homes, schools, businesses and factories. Electricity powers our TVs, computers, air conditioners, cell phones and washing machines - just to mention a few. We also use energy to run cars, planes, trains, buses and motorcycles.