Equations Flashcards
1
Q
Equation for gravitational potential energy?
A
Mass X Gravitational pull X height - [mgh]
2
Q
What are the units for GPE?
A
mass [kg] X g [n/kg] X height [m]
3
Q
Equation for kinetic energy?
A
Half mass X velocity squared[1/2 m X V-squared]
GPE
m/g/h
4
Q
What are the units for KE?
A
KE [J] X 1/2 mass [kg] V-squared [m/s]
5
Q
What is the equation for power?
A
work done/time taken
6
Q
What is power measured in?
A
Watts
7
Q
What is the equation for efficiency?
A
Useful power output/power input
8
Q
What is the equation for work done?
A
force X distance moved
9
Q
What are the units for work done?
A
work done[J] X distance moved [m]
