ECS_Q1

Money in bank:Purchasing goods/services is the same as ___________ to Work

Which of the following is a unit of power.
i) kJ
ii) kW
iii) kWh

True or false: Hydrogen is no a primary energy source?
True False

What characteristic is common between thermal and light energy?

Energy can neither be created nor destroyed. So what law prevents us from recycling energy?
i) Law of conservation
ii) First law of thermodynamics
iii) Third law of thermodynamics