GENERAL KNOWLEDGE

Detailed explanation-1: -A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. Objects that are fixed relative to Earth – such as a building, a tree, or a sign-make good reference points.

Detailed explanation-2: -An example of a reference point that is moving is when you look out the window of a car and notice that you are moving faster than the car next to you. The car next to you is moving, it is just moving slower than your car. You use that other car as a reference point to determine that your car is moving.

Detailed explanation-3: -Motion occurs when an object changes its position relative to a reference point.

Detailed explanation-4: -Motion – an objects change in position over time when compared to a reference point.

Detailed explanation-5: -An object is moving if its position relative to a fixed point is changing. Even things that appear to be at rest move. When we describe the motion of one object with respect to another, we say that the object is moving relative to the other object.