What causes a change in an object's motion?*1 pointbalanced forceunbalanced forceaccelerationinertia
An unbalanced force causes a change in an object's motion.
The main factor that causes a change in an object's motion is the presence of an unbalanced force acting upon it. When there is no net force acting on an object, it will remain in a state of equilibrium, with no change in its motion. However, if there is an unbalanced force, it will cause the object to accelerate in the direction of the force. The concept of inertia, which is the tendency of an object to resist changes in its motion, also plays a role in the object's response to forces. So, the answer is both unbalanced force and inertia play a role in causing a change in an object's motion.
A change in an object's motion is typically caused by an unbalanced force acting on the object. To understand this concept further, we need to explore Newton's laws of motion.
According to Newton's first law of motion, an object at rest will stay at rest, and an object in motion will continue moving at a constant velocity unless acted upon by an unbalanced force. Therefore, if an object's motion is to change, it requires an unbalanced force to act upon it.
An unbalanced force refers to a net force that is not zero. When multiple forces act on an object in different directions, their combined effect determines whether the object's motion will change. If the sum of all the forces in one direction is greater than the forces in the opposite direction, then we have an unbalanced force. This unbalanced force will result in a change in the object's motion.
Acceleration is the measure of how fast an object's velocity is changing. When an unbalanced force acts on an object, it causes an acceleration, leading to a change in the object's motion. So, acceleration is a consequence of an unbalanced force.
Inertia, which is an object's resistance to changes in its motion, is also involved. Without any external forces acting on an object, it will tend to maintain its current state of motion due to its inertia. However, when an unbalanced force is present, it overcomes the inertia and causes a change in motion.
To summarize, a change in an object's motion is primarily caused by the presence of an unbalanced force. This unbalanced force may lead to acceleration, and it overcomes the object's inertia, which tends to keep the object in its current state of motion.