类别 全部 - distance - work - force - power

作者:Chua Poh Lian 11 年以前

278

Power, Energy, Work

Power refers to the source of energy used to operate machines or systems and is defined as the rate at which work is done or energy is expended over time. It is measured in watts (W)

Power, Energy, Work

Power, Energy, Work

Energy

What are the different form of Energy?
Potential, Kinetic, Nuclear, Sound, Light, Electrical, Chemical & Heat

SI UNIT: Joule (J)

Power

What is Power?
1) The source of energy used to operate a machine or other system. 2) The rate at which work is done or energy expended, per unit time.

SI UNIT: Watt (W)

Work

How to Calculate Work Done?
(W=FD) Work Done(J) = Force(N) x Distance(M)

SI UNIT= Newton Metre/Joule (NM/J)