work and power Flashcards
1
Q
What is “work”?
A
When a force acts on the object and displaces it in the direction of the forces, then the work is done on the object.
2
Q
“Work” is the product of ______ and the ______ in the direction of force
A
product of “force and the displacement”
3
Q
The SI unit of work?
A
Newton-meter (N m), and also joule(J)
4
Q
equation of work done?
A
W=Fs
5
Q
What’s power?
A
“power” is the rate at which work is done / how fast the work is done
6
Q
Si unit of power?
A
Joule per seconds (J/s) and also watt(W)
7
Q
equation of Power?
A
P=W/t
8
Q
The unit of power is named after who?
A
James Watt, was a British inventor who developed the steam engine.
