* Newton's First Law (Inertia): 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 force*.
* Newton's Second Law: The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This means:
* Force and acceleration are in the same direction. A force in one direction causes acceleration in that same direction.
* Acceleration means a change in velocity. This change can be an increase in speed (speeding up), a decrease in speed (slowing down), or a change in direction (turning).
Examples:
* Speeding up: Pushing a box forward causes a force that accelerates it in the forward direction, increasing its speed.
* Slowing down: Applying brakes on a car creates a force opposite to the car's motion, causing deceleration (slowing down).
* Turning: Steering a car causes a force that changes the direction of the car's velocity, resulting in a turn.
Important Note: The net force is the *sum* of all the forces acting on an object. If the forces are balanced, the net force is zero, and the object will continue moving at a constant velocity or remain at rest.
