* Newton's Laws of Motion: Isaac Newton's laws of motion are the foundation of classical mechanics.
* 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 an unbalanced force. This means that a force is required to change an object's state of motion.
* 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 a force causes an object to accelerate, and the more massive the object, the less it accelerates for a given force.
* Newton's Third Law: For every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object exerts an equal and opposite force back on the first.
* What forces do: Forces are the push or pull that can cause objects to:
* Accelerate: Change their speed or direction.
* Deform: Change their shape.
* Start moving: If at rest.
* Stop moving: If in motion.
* Examples:
* Gravity pulls on your body, keeping you on the ground.
* The force of friction slows down a moving car.
* The force of a bat hitting a baseball causes the ball to accelerate.
In short: Forces are the fundamental interactions that cause changes in the motion of objects with mass.
