Energy Work and Power Flashcards
1
Q
The principle of the conservation of energy
A
energy is neither created nor destroyed. It may transform from one type to another.
2
Q
Kinetic energy formula
A
- Ek = (1/2) mv Squared
- Kinetic Energy = (1/2) Mass time (Velocity Squared)
3
Q
gravitational potential energy formula
A
- Ep = mgh
- Potential Energy = Mass X Gravitational Field Strength X Vertical Height
4
Q
equation for (mechanical) work
A
- W=Fd=ΔE
- Work Done = Force X Distance (in the direction of the force)
5
Q
Efficency
A
(Useful Energy Output / Total Energy Input) X 100
6
Q
Equation for Power
A
- Work done or Joules / Time in seconds
- Power (Watt)
