what is motion ?

gravity

A force of attraction between objects that is due to their masses.

friction

A force that opposes motion between two surfaces that are in contact

speed

Distance an object travels per unit of time

magnetism

Force of attraction between opposite ends (poles) of charged regions.

distance

Measurement of the physical space between two places.

average speed

The overall rate of speed at which an object moves; calculated by dividing the total distance an object travels by the total time.

what is inertia

The tendency of all objects to resist any change in motion. The tendency of an object at rest to remain at rest, or to continue moving at a constant velocity. Newton's 1st law of physics. An object in motion tends to stay in motion unless acted upon by an outside force. An object at rest tends to stay at rest unless acted upon by an outside force.

spring scale

Tool used to measure force Used for measuring weight

apparent motion

When something appears to be moving or not moving the way it should. the sensation of seeing movement when nothing actually moves in the environment, as when two neighboring lights are switched on and off in rapid

velocity

an objects speed in a particular direction Mechanics. the time rate of change of position of a body in a specified direction

force

force can cause a moving object to acceleration A push or a pull on an object is force

direction

the point toward which something faces or the line along which something moves or lies: "north," "up," "forward," and "left" are directions

acceleration

the time rate of change of velocity with respect to magnitude or direction; the derivative of velocity with respect to time. increase of speed or velocity.

weight

weight is the example of continuous force