Unit 2: Force & Motion | Notion

motion:

Physical Quantity	Definition	Scalar/Vector	SI Unit	Symbol
Distance	Total length of path travelled	Scalar	m	d
Displacement	Straight-line distance from start to end with direction	Vector	m	s
Speed	Rate of change of distance	Scalar	m/s	v
Velocity	Speed in a specific direction (change of displacement)	Vector	m/s	v
Acceleration	Rate of change of velocity	Vector	m/s²	a

Formulae:

Speed: speed = distance / time
Velocity: velocity = displacement / time
Acceleration: a = (v - u) / t

suvat equations

Screenshot 2025-09-02 at 7.35.05 PM.png

Deriving SUVAT Equations - Integral Magazine

motion graphs

Distance-Time Graph

Gradient = speed
Flat line = stationary
Diagonal = constant speed
Curve = acceleration/deceleration

Screenshot 2025-09-02 at 7.36.36 PM.png

Velocity-Time Graph

Gradient = acceleration
Area under graph = displacement
Horizontal = constant speed
Upward/downward slope = acceleration/deceleration

Screenshot 2025-09-02 at 7.37.16 PM.png

Screenshot 2025-09-02 at 7.38.16 PM.png

Acceleration-Time Graph

Flat line = constant acceleration
Area under graph = change in velocity

forces:

Force: A push or pull that changes motion or shape.
Unit: Newtons (N)