PHYSICS FORMULAS

d, v, t triangle

URM (horizontal)

Vf = Vo + at

d = Vot + ½ at²

Vf² = Vo² + 2ad

d = (Vf + Vo)/2 x t

4 UAM formulas

Vox = Vo cosθ (h)
Voy = Vo cosθ (v)

projectile motion horizontal and vertical axis

fma triangle

force

mass x gravity

weight (N)

a = Vf - Vo / t

law of acceleration

mew (normal force)

friction force = ??

1. force x displacement

2. f x d x cos θ

3. △ KE

work

½ mv²

kinetic energy formula

mass x gravity x height

or 1/2kx²

potential energy

KE + PE

mechanical energy

work/time

power

mass x velocity

momentum (P)

• force x time

• △ momentum

impulse (J)

ΣPi = ΣPf

collision

• ΣKei = ΣKef

• ΣKei ≠ ΣKef

elastic and inelastic

m1v1i + m2v2i = (m1 + m2) x velocity x force

perfectly inelastic

roh = m/v

density

I = Q/t

current formula

I = I = I = I

Rt = 1/R + 1/R + 1/R

Vt = 1/V + 1/V + 1/V

series circuit current, resistance, and volt

V= V = V= V

Rt = 1/R + 1/R + 1/R

It= 1/I + 1/I + 1/I

parallel circuit current, resistance, and volt

v = λ/t

formula for wave speed

T = 1/f

formula for period

1. real or virtual

2. upright or inverted

3. smaller/bigger/same

plane mirror (flat)

-concave and convex

spherical mirror

M = hi/ho

M= di/do

magnification formulas

1/f = 1/di + 1/do

mirror formula

v= work/charge

voltage formula

r= ρL/a

resistance formula