In this resource, you will look at the relationship between forces and motion.

Video segment. Assistance may be required. Take a moment to watch the following video. The information in the video provides a quick review of the laws of motion. Remember, in science a law is something that has been proven and tested. While watching the video, take notes about the laws of motion in your notes. You will look more deeply at these laws in the upcoming sections.

Source: Newton's Laws of Motion illustrated with 3D animations and motion graphics, bryaneye, YouTube

Image is of Isaac Newton

Source: Sir Isaac Newton, Sir Godfrey Kneller, Wikimedia Commons

Sir Isaac Newton revolutionized the way motion is looked at by many with the following three laws:

  1. An object at rest will remain at rest, and an object in motion will remain in constant straight-line motion unless acted upon by an unbalanced outside force.
  2. An unbalanced force causes an acceleration described by the equation Fnet = ma.
  3. For every pair of objects, if object A exerts a force on object B, then object B will exert an equal and opposite force on object A (FAB = -FBA).

In the upcoming sections, you will explore each of these laws more closely.