Work Energy And Power Flashcards
(3 cards)
1
Q
What is work?
What is 3 works formula
A
Work is done when a force move a distance.
Formulas:
1)Work=force * distance.
2) work= mgh
3) in inclined plane, work= fscos@
2
Q
What is power.
What is it’s formula
A
Power is the ability to do work.
Power = work done over time. In watts
Power= force * velocity
Power= mv^2 over 2t
3
Q
What is energy and its formulas.
A
Energy is the ability to work also in watts.
Pe= mgh
Gpe= mgh
Ke= 1/2 mv^2
In conservation and catapult,
Mgh=1/2mv^2
Initial kinetic energy of a body or ke at ground level is = to mgh
