Newton's First Law of Motion (Law of Inertia)
This law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity, unless acted upon by an unbalanced force.
Moving Objects:
* Constant velocity: If an object is moving at a constant velocity (same speed and direction), it will continue doing so unless a force changes its motion. For example, a car moving at a constant speed on a straight road will continue moving at that speed unless the driver applies the brakes or the car encounters friction.
* Changing velocity: If an object is moving and a force acts upon it, its velocity will change. This could mean speeding up, slowing down, or changing direction. For example, if a ball is rolling across the floor and you kick it, the force of your kick will cause the ball to change its velocity.
Non-moving Objects:
* At rest: Objects at rest will stay at rest unless a force acts upon them. This means they will remain motionless until something pushes or pulls them. For example, a book sitting on a table will stay on the table unless someone picks it up or something pushes it off.
In summary:
The law of inertia applies to all objects, regardless of whether they are moving or at rest. It describes their tendency to resist changes in their state of motion.
