Power Flashcards
All 4 cards in this deck
Define power.
The rate at which energy is transferred (the work done per second).
State the equation for power in terms of work done.
power (W) = work done (J) ÷ time taken (s),
One watt is equal to how many joules per second?
1 W = 1 J/s.
True or false? Two devices that transfer the same energy in different times have the same power.
False. The one taking less time has the greater power, since power = energy ÷ time.