A quizlet about Newton’s laws
Several excellent websites:
- Physics for kids
- Physics classroom (Newton’s laws)
- Crash course physics, Newton’s laws (Also, Newtonian Gravity)
- Gravity (Flocabulary, need subscription)
A video on free-fall (gravity).
And for the more serious, here’s a video of Neil DeGrasse Tyson about the person he’d most want to meet if he could go back into time: Isaac Newton.
For the extremely serious, the Stanford Encyclopedia of Philosophy has an entry on Newton. And here’s an essay about the world of classical physics–started by Galileo and then developed by Newton–and the world of quantum physics, represented by Einstein.
Newton Law I: Inertia (objects tend to resist changes in motion. An object at rest tends to remain at rest, an object in motion tends to remain in motion w/constant velocity).
Inertia and mass (from Flipping Physics)
Intro to Newton’s first law (from Flipping Physics)
Newton’s Law 2: Force = mass * acceleration
A three-force example of Newton’s second law (from Flipping Physics).
(And why don’t things just keep going, accelerating, once you apply a force to them? Because friction slows them down–friction is a force that acts in the opposite direction as the motion!)
Newton’s Law 3: Every action has an equal an opposite reaction. That’s right, when you jump up, even as the Earth is pulling you down, you are pulling the Earth up–you just don’t notice it because you are so infinitesmally small relative to the Earth.
Intro to Newton’s third law of motion (from Flipping Physics.)
Common misconceptions about Newton’s 3rd law (from Flipping Physics).
Newton’s third law oops! example (from Flipping Physics)