Newton's Laws of Motion

This set of flashcards covers the key concepts from the lecture on Newton's Laws of Motion, including definitions and examples.

Newton's First Law of Motion

An object at rest tends to stay at rest, or an object in motion tends to stay in motion, unless acted on by an unbalanced force.

Newton's Second Law of Motion

The acceleration of an object depends on the net force and the mass of the object (F = ma).

Newton's Third Law of Motion

For every action, there is an equal and opposite reaction.

Force

A push or a pull on an object that causes a change in motion; measured in newtons (N).

Momentum

A measurement of mass in motion, calculated as momentum = mass * velocity; measured in kilogram-meters per second (kg*m/s).

Law of Conservation of Momentum

The combined momentum of objects remains the same after a collision; momentum is conserved in all actions and reactions.

Inertia

The tendency of an object to do nothing or remain unchanged.

Friction

A force that opposes motion, measured in newtons (N).

Sir Isaac Newton

An English physicist and mathematician in the 1600s who formulated the three basic laws of motion.

Unbalanced Force

A force that causes a change in the motion of an object.