Lec 3 | MIT 5.95J Teaching College-Level Science and Engineering, Spring 2009
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Uploaded by MIT on Jan 27, 2010
Lecture 3: Taking account of misconceptions; avoiding rote learning
See the complete course at: http://ocw.mit.edu/5-95js09
License: Creative Commons BY-NC-SA
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- 17 likes, 2 dislikes
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Top Comments
All Comments (6)
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Okay, thank you for sharing that...
You want a cookie or something???
P.S. I don't care if you went to college or not, :P.
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I've never been to college.
People that know about history, and have heard of Galileo know about his experiment of rolling similarly shaped objects down a gentle slope with varying masses. The result of his experiment was that they fell at the same rate.
astronauts proved the theory on the moon by dropping a feather and a golf club at the same height on the moon where wind resistance was not a factor.
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@joekwuen you are wrong.
by definition, acceleration is a rate of change in velocity.
so forget about forces and look at velocity vectors.
if you are still stuck with your misconceptions, go look up the original publication, Google gives free access to some parts of it.
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his pendulum solution is wrong...
there is only acceleration straight down by the gravity.
which can be seperated into two vectors
one for canceling out the tension force done by the string
and one for accelerating the pendulum itself so it would swing...
in the middle, the tension of the string is cancelled completely by the gravity force,
thus there is no overall acceleration in the middle
if there was an acceleration upwards, the pendulum would jump up whenever in the middle lol
stupid...
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I m a highschool student from germany, your videos are very helpfull and thanks for uploading.
teom44 2 years ago 5
I agree that rock example rocked!
ClementIV 2 years ago 3