Wednesday, December 13, 2017

Wondering about Pulleys on Wednesday

Have you heard of simple machines?  Check out our exploration of pulleys this afternoon:
How do these work?


mindful focus to figure them out

Team work reading the scale 



prototype 1 upgrade to prototype 2 with addition of an axle.  



Here's what we learned about them through our exploration:


What did we learn about pulleys today?

“Pulleys -- expands the weight -- spreads the weight” -- Kian

“I learned that if you use 4 pulleys -- the weight doesn’t change it just affects the amount of force you have” -- peyton

More pulleys = less force required to life object

“pulleys are helping you, like 4 friends could help you carry something -- so do the pulleys -- “Mustafa

Today my thinking was transformed when I learned for pulleys the more weight the more force needed to work the pulley -- Ainslee


Pulleys help you work against the force of gravity pulling down on object.


You need a Thicker rope for heavier objects -- Brock


What did we learn about the Green scales - the more the weight the more expansion in the spring - because of the weight.


A pulley is a great simple machine because you don’t have to apply as much force.


Where do we find pulleys? Construction sites, home (venetian blinds)



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