When the position of an object changes over time, it is said to be in motion. A reference point is used to describe the location of an object. The concept of motion is relative. The distance traveled by an object is defined as the total path covered by it.
Distance and displacement
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Average speed and average velocity
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Force & laws of motion
What causes objects to move around? We thought we had the answer for almost 2000 years, but we discovered we were mistaken about 400 years ago. We'll look at the fundamental nature of motion in this lesson.
