scalars and vectors

Scalar

A physical quantity that is described by magnitude or size only.

Vector

A quantity that possesses both a numerical magnitude and a specific direction.

Magnitude

The numerical size or amount of a physical quantity.

Displacement

The straight-line distance and direction from a starting point to a finish.

Velocity

The speed of an object in a specific, stated direction

Acceleration

The rate at which an object changes its velocity over time.

Force

A push or pull acting on an object during an interaction.

Contact Force

A force that occurs when two objects are physically touching.

Non-contact Force

A force acting on objects that are physically separated and not touching.

Resultant Force

The single overall force created by combining all forces on an object.

Friction

A contact force that opposes motion when two surfaces rub together.

Tension

A stretching force transmitted through a pulled rope, string, or cable.

Weight

The downward force acting on an object due to gravity.

Balanced

Forces that are equal in size but opposite in direction.

Speed

A scalar measure of how fast an object is moving.

air resistance

caused when a object travels through air

gravitational

pulls an object towards other with mass (non contact)

magnetic

force produce by magnets

normal contact

reaction force from a surface when another force is applied

thrust

pushing force produce by engine/rocket

upthrust

forced upwards that allows objects to float