# AS Physics Equations

HideShow resource information
• Created by: Bryony
• Created on: 10-02-14 10:33
Resolving a vector: horizontal component
Vx = vCos(θ)
1 of 24
Resolving a vector: vertical component
Vy = vSin(θ)
2 of 24
SUVAT: no S
v = u + at
3 of 24
SUVAT: no U
s = vt – ½at2
4 of 24
SUVAT: no V
s = ut + ½at2
5 of 24
SUVAT: no A
s = ((u + v)/2)t
6 of 24
SUVAT: no T
v2 = u2 + 2as
7 of 24
Velocity
Change in displacement / time taken
8 of 24
Acceleration
Change in velocity / time taken
9 of 24
Weight
mass x gravitational field strength
10 of 24
Density
mass / volume
11 of 24
Resultant force (N)
mass (kg) x acceleration (ms^-2)
12 of 24
Work done
force causing motion x distance moved
13 of 24
Power
work done / time
14 of 24
Power
force x velocity
15 of 24
Kinetic energy
Ek = ½mv^2
16 of 24
Gravitational potential energy
ΔEp = mgΔh
17 of 24
Elastic potential energy
E = ½ke^2
18 of 24
Hooke's law
F = ke
19 of 24
Stress
force applied / cross-sectional area
20 of 24
Strain
change in length / original length
21 of 24
Young Modulus (E)
(Force x initial Length) / (Extension x cross-sectional area)
22 of 24
Stoke's Law
F = 6πηrv
23 of 24
Upthrust
Weight of fluid displaced
24 of 24

## Other cards in this set

### Card 2

#### Front

Resolving a vector: vertical component

Vy = vSin(θ)

SUVAT: no S

SUVAT: no U

SUVAT: no V