The speed-time graph below illustrates how the speed of an object changes with time. A horizontal line on a speed-time graph represents a steady speed. This can also be called a constant or uniform ...

Velocity-time graphs show how the velocity (or speed) of a moving object changes with time. These graphs also show if the object is moving at a constant speed or accelerating, decelerating, or still.

Get the CBSE Class 9th Science chapter, Motion: Important Questions & Preparation Tips 2015. This will provide you with a very clear idea about what type of questions are being framed for the exam and ...