What is uniform and non uniform motion along a straight line

Motion Along Straight Line

What dies the tangent at apoint to the position-time graph for an object in non-uniform motion along a straight line represent?

Name the property of bodies due to which they resist change in their state of rest or state of uniform motion along a straight line.

Assertion : Velocity-time graph for an object in uniform motion along a straight path is a straight line parallel to the time axis. Reason : In uniform motion of an object velocity increases as the square of time elapsed.

what is uniform motion ?

What is non-uniform motion ?