work & energy Flashcards
1
Q
power
A
Joules/seconds = watts
2
Q
kinetic energy
A
(0.5)mv^2
3
Q
force and distance in mechanical advantage
A
F1d1 = F2d2
4
Q
gravitational potential energy
A
mgh
5
Q
potential energy of a spring
A
(0.5)Kx^2
6
Q
potential energy of gravitational attraction of two masses
A
p=-Gm1m2/r
7
Q
Total mechanical energy of a system
A
Etotal = KEtotal + PEtotal
8
Q
force of a spring
A
F = -kx
9
Q
What is work done on and object
A
W = F*d cos theta
10
Q
Torque
A
torque = Force * distance sin theta
11
Q
What is the work energy therom?
A
net work = delta KE
12
Q
What are all the conservative forces?
A
gravitational
magnetic
electrostatic
spring force