Energy Types And Transfers Of Energy

Question 1

Some microwaves cook popcorn faster than others. Why is there a difference?

Answer 1

Microwave ovens have a power rating in wats. The power rating tells you how much energy is transferred per second-the rate of transfer of energy.

Question 2

What formula do you use to calculate power?

Answer 2

Power(W)=energy(J)
—————
Time(S)