Free Fall and Air Resistance
In a previous unit, it was stated that all objects (regardless of…
Are You Infected with the Misconception?
Two students are discussing their physics homework prior to class. They are…
Newton’s Laws of Motion
Newton's first law of motion predicts the behavior of objects for which all existing forces…
Determining the Net Force
If you have been reading through Lessons 1 and 2, then Newton's first…
Drawing Free-Body Diagrams
Free-body diagrams are diagrams used to show the relative magnitude and direction…
Sliding versus Static Friction
As mentioned above, the friction force is the force exerted by a surface…
Confusion of Mass and Weight
A few further comments should be added about the single force that…


