Formulas Flashcards
1
Q
distance
A
distance = speed x time
2
Q
acceleration
A
a = (v-u) / t
3
Q
weight
A
w = mass x gravity or N = kg * N/kg
4
Q
momentum
A
momentum (p) = mass x velocity
5
Q
gravitational potential energy
A
gpe = m * g * h
6
Q
kinetic energy
A
(1/2mass) x v^2
7
Q
efficiency
A
efficiency = useful energy/ total energy
8
Q
wave speed (velocity) involving frequency
A
v = f * wavelength
9
Q
wave speed (velocity) involving time
A
v = x/t
10
Q
final velocity^2 - start velocity^2
A
v^2 - u^2 = 2ax (2 x acceleration x distance)
11
Q
force
A
f=ma
12
Q
advanced force
A
f= (mv - mu) / t
13
Q
power/watts
A
p = e/t
14
Q
work
A
J = force x distance
15
Q
GPE = what equation and why
A
kinetic energy, because of the conservation of energy
