i have my physics book right in front of me now and i'm studying it like reading a magazines, thinking of how physics can help britney spears to slim down. opps! *whacking myself with the book* i mean how physics can help to understand more about..err..err..not to be particular, everything on earth. *cough cough* physics is so damn important. *cough cough*
if you are so not interested in physics, ignore this post. i'm just doing a crazy revision, jolting down what i'm studying on this post, FOR FUN. yes! FOR FUN.
mummy said the most important part about studying is the understanding of the knowledge, not the results. but mummy, the results do matter.
anyway, i'm going for the understanding path.
let's start with topic 4, dynamics.
newton's laws of motion! herm herm, i'm appreciating the 1st, 2nd and 3rd law from this great man.
points to memorise:
- the 1st law states that a body will continue its state of rest or uniform velocity unless acted upon by an external force. (this applies on people i think, a man will remain cool unless an attractive woman tries to seduce him. lol. ok, now i can remember how the 1st law works in real life.)
- the 2nd law states that the rate of change of momentum is directly proportional to the resultant force applied and it acts in the direction of the force. (can't think of any nonsense to remember this, i shall remember it in the proper way.)
- the 3rd law states that if A exerts a force on B, then B would exert an equal and opposite amount of force on A. (this happens in our everyday life, if we treat our friends nicely and sincerely, we would be treated the same way in return. sigh. this principle doesn't work all the time though, sad.)
gee~ this is fun! i can go on and on and on and talking non-stop about dynamics, BUT i think it's gonna bore everyone to death, so, fun is over! can't stand sitting on a chair to study, i need to lie on my bed and make myself comfortable.
cheerio~ and yes! physics rockx!!
No comments:
Post a Comment