Equations Flashcards
1
Q
What is the equation for weight?
A
weight = mass x gravitatinal fielf strength w = m x g
2
Q
What is the equation for work done?
A
work done = force x distance
w = f x s
3
Q
What is the equation for force applied to a spring?
A
force applied to a spring = springs constant x extension
f = k x e
4
Q
What is the equation for kinetic energy?
A
kinectic energy = 0.5 x mass x speed2
ke = 0.5 x m x v2
5
Q
What is the equation for gravitatinal potential energy?
A
gpe = mass x gravitatinal field strength x height Ep = m x g x h
6
Q
What is the equation for power?
A
power = energy transfered (over time) p = e (over t) or power = work done (over time) p = w (over t)
7
Q
What is the equation for efficiency?
A
efficiency = useful output energy transfer (over) total input energy transfer
or
useful power output (over) total power input
8
Q
What is the equation for energy transfered?
A
energy transfered = power x time
9
Q
What is the equation for density?
A
density = mass (over) volume
