Newton's Laws

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

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

Inertia is the tendency of an object to resist changes in its state of motion.

Speed is calculated by dividing the distance traveled by the time taken (Speed = Distance/Time).

The unit of force is the Newton (N).

As mass increases, acceleration decreases if the force remains constant.

Acceleration is calculated by dividing the change in velocity by the time taken (a = Δv/Δt).

Gravity pulls objects toward the center of the Earth, affecting their motion and acceleration.

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass (Weight = mass × gravity).