Precision in Thinking

MYP Physics Formula Sheet

A calm, compact map of the main relationships used in MYP Physics.

Mechanics • Energy • Waves • Electricity

Symbols & Constants

Keep these meanings close. They make each formula easier to read and remember.

d, s

Distance / displacement (m).

t

Time (s).

v

Velocity (m\,s^{-1}).

a

Acceleration (m\,s^{-2}).

F

Force (N).

m

Mass (kg).

w

Weight (N).

p

Momentum (kg\,m\,s^{-1}).

E, W

Energy / work (J).

P

Power (W = J\,s^{-1}).

Q

Thermal energy (J).

c

Specific heat capacity (J\,kg^{-1}\,K^{-1}).

T

Temperature, (K) or (°C).

f

Frequency (Hz).

T

Period (s).

\lambda

Wavelength \ (m).

I

Intensity (W\,m^{-2}).

V

Voltage / potential \ difference \ (V).

I

Current (A).

R

Resistance (\Omega).

Q

Charge (C).

g \approx 9.8\,m\,s^{-2}

Gravitational \ field \ strength \ near \ Earth.

c \approx 3.0 \times 10^{8}\,m\,s^{-1}

Speed \ of \ light \ in \ vacuum

Topic-wise Formula Map

For each topic, read the idea first, then the equation. Let understanding lead calculation.

1. Mechanics

$s = \dfrac{d}{t}$
Speed = distance ÷ time.
$v = \dfrac{\Delta d}{\Delta t}$
Average velocity = displacement ÷ time.
$a = \dfrac{\Delta v}{\Delta t}$
Acceleration = change in velocity ÷ time.
$F = ma$
Resultant force = mass × acceleration.
$w = mg$
Weight = mass × gravitational field strength.
$p = mv$
Momentum = mass × velocity.

2. Energy & Work

$E_{k} = \tfrac{1}{2}mv^{2}$
Kinetic energy of a moving object.
$E_{p} = mgh$
Gravitational potential energy near Earth.
$W = Fd\cos\theta$
Work done by a force along a distance.
$P = \dfrac{W}{t}$
Power = energy transferred per unit time.
$Q = mc\Delta T$
Thermal energy for a temperature change.

3. Waves

$v = f\lambda$
Wave speed = frequency × wavelength.
$T = \dfrac{1}{f}$
Period = 1 ÷ frequency.
$I = \dfrac{P}{A}$
Intensity = power per unit area (optional higher level).

4. Electricity

$V = \dfrac{E}{Q}$
Voltage = energy per unit charge.
$I = \dfrac{Q}{t}$
Current = charge per unit time.
$R = \dfrac{V}{I}$
Resistance from voltage and current (Ohm’s law form).
$P = VI$
Electrical power = voltage × current.