Newton's Laws of Motion - JSS2 Basic technology Past Questions and Answers - page 2

Newton's First Law of Motion 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 a net external force. This law is also known as the law of inertia, implying that without an external force, the motion of an object does not change.

The formula associated with Newton's Second Law of Motion is F = ma , where \( F \) is the net force acting on an object, m is the mass of the object, and a is the acceleration of the object. This indicates that the acceleration is directly proportional to the force and inversely proportional to the mass.

According to Newton's Third Law of Motion, when you push against a wall, the wall pushes back with a force that is equal in magnitude and opposite in direction to the force you applied. This principle shows that forces always come in pairs.

The soccer ball eventually stops due to Newton's First Law of Motion, which states that an object in motion stays in motion unless acted upon by an external force. The external forces of friction and air resistance cause the ball to slow down and stop.

A book remaining on a table illustrates Newton's First Law of Motion. The book stays at rest because no net external force is acting on it to change its state of motion.