For nearly 300 years, Isaac Newton’s first law of motion has been one of the most fundamental principles in physics. But a ...

An explanation of Newton’s First Law of Motion which addresses a common misconception about the effect of a force on an object that is already moving.

The objective of Newton’s first law, to establish a frame with no fictitious forces, in which to formulate the rest of the theory, is made obsolete by general relativity.

Newton's laws of motion are everywhere around you, explaining everything from why you feel pushed back in your seat when a ...

Teacher Notes. The demonstration with the skateboarders could be repeated in class. The class could then construct water rockets and observe Newton’s third law in action.