section 1- work and power Flashcards
(14 cards)
what inner energy means that something is moving
Kinetic energy
what happens when you apply a force to an object in the object moves in the direction of the force
you have done work
how can the work be done
when the object moves in the same direction of the force
what is done when a force causes an object to move in the direction of the force
work
what happens when the object moves as a force is applied and the direction of the objects motion is the same as the direction of the force
work is done
is work done when a car is pushed and it does not move
no
what does work depend on
distance and force
what is the equation of work
work = forcexdistance
what is force expressed in
newtons aka joule
what is the rate at which energy is transferred
power
what unit is expressed in power
watt
what measures hero fast work happens it how quickly energy is transferred
power
what is the equation of power
power = watt divided by time
what happens when you use more power on an engine
it is powerful
