Inertia.
An object at rest, tends to stay at rest, while an object in motion tends to stay in motion.
An object's tendency to resist a change in its state of motion is called inertia. This is the basis of Newton's Laws of Motion; "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.". The state of motion refers to the object's velocity, which is the the speed and direction. One quantifies inertia as the quantity of mass of an object. On can say that the mass of an object is a measure of how much an object resists change in its motion. The more mass an object has, the more inertia it has. That's why it is harder to push a 3 ton box as opposed to a soccer ball, or something lighter.
Newton's 1st Law of Motion states that an object will maintain its speed when there is no net force acting on it. The question refers to free space and constant velocity -- the net force has to be zero. =========================
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
If no unbalanced force operates on an object its motion will be constant.
refers to the tendency of observers to see what they expect to see.
Inertia. An object at rest, tends to stay at rest, while an object in motion tends to stay in motion.
An object's tendency to resist a change in its state of motion is called inertia. This is the basis of Newton's Laws of Motion; "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.". The state of motion refers to the object's velocity, which is the the speed and direction. One quantifies inertia as the quantity of mass of an object. On can say that the mass of an object is a measure of how much an object resists change in its motion. The more mass an object has, the more inertia it has. That's why it is harder to push a 3 ton box as opposed to a soccer ball, or something lighter.
"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object
Newton's 1st Law of Motion states that an object will maintain its speed when there is no net force acting on it. The question refers to free space and constant velocity -- the net force has to be zero. =========================
Velocity
No, kinematics specifically refers to the study of motion. If an object is at rest, there is no motion occurring, and therefore no kinematics.
Inertia refers to the resistance of an object when there is a change in the motion of the object. The more inertia the object has, the more mass it will have.
Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
If no unbalanced force operates on an object its motion will be constant.
Acceleration in motion refers to a change in speed or direction of that object's motion. So a type of motion in which speed and direction do not change is a motion in which the acceleration is constant (i.e. unchanging).
Non-uniform motion refers to the type of motion where the speed or direction of an object is changing over time. In non-uniform motion, the object is not moving at a constant speed or in a straight line. Instead, its velocity is varying, and it may be accelerating or decelerating.
refers to the tendency of observers to see what they expect to see.