Sunday, December 20, 2009

Force

this week in science we learned about Newtons 3rd law. his law states that if you push on an object, that object will exert a force on you too. we did a lot of experamints to prove this. and then we learned the official term for it, which is Newtons Third Law.

Monday, December 7, 2009

force diagramssss

this week in science we did the following.

monday- ok well last week we finished kinamatics and stuff so its new unit time! we learned about forces and how they work. we learned that worce of certain objects is more forcelful than other objects. such as a basketball versus a bowling ball. a bowling ball has much more force on your hand than a basket ball, but the force isnt from the ball. it is from the earth. gravity is pulling it down. its not the ball thats forceful.

tuesday- today we learned baout force diagrams. we did many emaples and made a lot of force diagrams. force diagrams show the way that the force of an object is going. either if it is being pulled up, being pulled down, or not being pulled at all, which i dont htink is possible.

wednesday- on wednesday we did more exapmles and we clarified everyhting.

thursday- on thursday we pushed mr finleys car and we figured out taht even after you let go of the pbject, the force keeeps going.

fridayy- on friday we leaned more about that. we also leaned that friction of the objct onm the floor adds more forces. we made more advanced force diagrams aswell.