We've been learning about motion for a few weeks now and I can see that some of us are getting sick of it by now. Well, unfortunately we still have a ways to go before we can escape this unit! Argh!
Yesterday we found out that in the early 1600s the Scientific Revolutionary Galileo figured out that an object in motion doesn't require any more force to continue moving. That was a pretty brilliant idea, but it didn't cover all bases. So later in that same century this English guy named Isaac Newton (later Sir Isaac newton still with two A's in Isaac) made a little adjustment to Galileo's original idea. He put it this way: an object in motion will remain in motion at a constant velocity - and in a straight line - unless acted on by an unbalanced force. The Laws we came up with in class were pretty similar to these.
Today we threw in the concept of inertia into the mix. Inertia we figured out is an object's tendency to resist a change in motion. We saw an example of this with the Monster Bus and the Flying Washers. We also notice this while riding in cars or on the subway when we keep moving in the same direction after the vehicle has stopped or changed direction.
Well for all of this talk of motion, tonight's assignment seems a bit odd. We have to find an object that is not in motion and explain why it does not move. Simple enough right? Okay. Write a paragraph about it and we'll discuss our ideas in class!
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