Hey, guys, guess what? We're going to be learning about this guy who's going to be mentioned a lot. Yep, you guessed it, probably from the title, Isaac Newton! The only reason I don't like the guy is because he's the one who's gonna make us learn this. I mean, seriously, why couldn't he have eaten the apple like any other sane person? Ah, well. No sense moaning over something that won't change, right? Okay, so, obviously, we're going to be learning about the three laws of motion. Again, it's in the title, so if you didn't know that than you really shouldn't be reading this because that would mean you're probably in preschool.
- Okay, so the easiest way to explain the first law of motion is laziness. Or, the law of inertia. But if you wanna get technical but still make it easy than it's: an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an external outside force. So, basically, if a ball is staying still, it wants to stay still, because it would take it's own 'energy' to move, or to go in motion. But if someone or something else comes along and pushes it, it wants to stay in motion, because it would take it's own 'energy' to stop. The only reason that ball will not continue to move is because of friction and the water molecules in the air.
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| The First Law of Motion |
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| This is why you should wear a seat belt. |
- Newton's second law of motion is basically acceleration. Really, nearly everyone knows the second law of motion, whether you realize it or not. Because really, everyone knows that heavier object need more force to move the same distance as lighter objects. For example, like below, if someone kicks a brick wall, then obviously it's not going to move. But if you kick a soccer ball with the same force, then it will actually go somewhere, and you feel good about yourself not being stupid enough to kick a brick wall to see if it'll move. As for the acceleration part of the thing, acceleration isn't only speed. I mean, a turtle is super slow, but if it moves a little faster, then it'll still be accelerating, even if it only is going two miles per day. The equation for the second law of motion is F=MA which is basically force equal mass times acceleration. By the way, there are three types of acceleration: constant speed, which is when it goes the same speed, negative acceleration, which is when you go uphill, and positive acceleration, which is when you go downhill.
- Example: Mike's car is out of gas. It weighs 1,000 kilograms. Mike is trying to push the car to the nearest gas station, and he makes the car go 0.05 miles per second per second. If you use the second law, you can figure out how much force Mike is applying to the car.
The Second Law of Motion
- Newton's third law of motion is for every action there is an opposite and equal reaction. Pretty self explanatory, but I'm not paid to only give you some self explanatory definitions. Come to think of it, I'm not paid at all...oh, well. Anyway, this is basically like if you have something, say, like a rocket, and it starts spewing out fire, that's the action. The reaction is it lifting off. Simple enough.
So, that's Newton's Laws. Cool, huh? Nah, I didn't think so either. I still think he should've become a farmer like he was supposed to, but who cares? I hope you enjoyed the animated pictures. I know I did. By the way, there are links below, just in case. My classmate's links are also below. Should be interesting, since they have different personalities. Oh, and there's also a video, should you be interested. By the way, guys, I'm sorry to inform you that Kevin is no longer at the school. We're all mourning his loss. On a brighter note, we have a new student! I need to ask her for her blog URL, but once I find out, you can be sure she'll be awesome! And, t-t-t-t-t-that's all, folks!
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