Which statement best describes the inertia of an object?
A.Inertia is the tendency of an object to resist a change in its motion.
B.Inertia is the weight of an object.
C.Inertia is what determines how fast an object will fall.
D.Inertia measures how hard an object will hit something.
its A.
The correct answer is A. Inertia is the tendency of an object to resist a change in its motion.
The correct statement that best describes the inertia of an object is A. Inertia is the tendency of an object to resist a change in its motion.
To understand why option A is the correct answer, let's break down the concepts. Inertia relates to Newton's First Law of Motion, also known as the law of inertia. This law states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force.
Inertia is not determined by an object's weight (option B). Weight is the force exerted on an object by gravity and is dependent on the object's mass and the acceleration due to gravity, but it is not directly related to inertia.
Inertia does not determine how fast an object will fall (option C). The rate at which an object falls is determined by its weight and the gravitational force acting on it, but inertia is not directly involved in this relationship.
Inertia does not measure how hard an object will hit something (option D). The force of impact between two objects is determined by several factors, such as velocity, mass, and the contact area, but again, inertia is not directly involved in this relationship.
Therefore, the best description of inertia is option A, as it captures the essence of an object's resistance to changes in motion, as stated by Newton's First Law of Motion.