Newton's three established laws of physics are some of the most fundamental and basis concepts of this science. His laws changed our understanding of the universe because they apply indefinitely to everything they refer to.
His first law states: "Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it."
This video shows a ball sitting still on a table. The ball is in motion, it has a speed and velocity of 0 m/s and no acceleration and has distance and displacement of 0m. This law says that the ball will continue to stay in this motion until something changes that! It's right! The ball just sits there, consistently sitting still. That is of course until I poked it. This was the "external force" that I applied to it in order to change its state of motion. When I poked it, the balls state of motion was changed!
His second law states: "The relationship between an object's mass (m), it's acceleration (a), and the applied force (F) is F=ma."
In this video, I used two balls to demonstrate Newton's second law. This mathematical formula is used to describe the force of objects in relation to each other. Both balls are dropped from the same height so they fall the same distance and are under the same acceleration of gravity (9.8 m/s^2) - in that respect they are the same. I take a moment in the beginning to show that the purple soccer ball is bigger than the tennis ball, it has a greater mass. This all means that when I run up the stairs to drop them, the purple soccer ball falls with more force than the tennis ball because it has a greater mass and the same acceleration!
His third law states: For every action there is an equal and opposite reaction."
This simple video accurately demonstrates Newton's final law. The action that occurs is me throwing the ball up at a certain velocity. The equal and opposite reaction is that the ball falls down (in the opposite direction) at the equal velocity I threw it up at for the same distance that it went up at! The reaction was both equal in distance and opposite in direction and both in velocity because when it came down it was going the same velocity but negative.
Source:
http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html
I mean cool that we did like the same examples. :) But I really like how you did different videos for the different laws. It really gives us a good visual aid after learning about the laws in words.
ReplyDeleteHahaha did we? Awww shucks! Great minds huh? Thanks I'm really happy you appreciated it!
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