Thing Learned: drawing force diagrams
Learned By: identifying all of the forces that effect an object of interest and the direction that they are pushing
Thing Learned: which way an object of interest will move
Learned By: identifying the unbalanced force effecting the object and which way it is pushing
TL: that delta V arrows and the direction of the object (like a ball or car) go in the same direction
LB: drawing force diagrams and comparing them to the delta V arrows on motion diagrams when they are drawn
TL: that two balanced forces cancel each other out and make the object of interest stay still
LB: splitting into two equal groups and pushing on opposite sides of Mr. Finley's car
TL: scales measure the force of someone/something applied on them (weight not mass)
LB: watching Amy and Amanda do an experiment on You-Tube
TL: people weigh less on the earth's moon (or other small planets or moons) than they do on earth
LB: comparing the earth's mass to the mass of other planets because the mass of the earth is bigger so the pull of the earth is stronger
TL: the greater the mass the smaller the acceleration
LB: having Kathy and Laura pull Mark, JR, and Aage in a cart
It is important to know these things if you go into physics in college or high school and also so you can just understand who will go faster down a slide; you or your little brother, and so you will understand that you don't actually get fatter in an elevator.
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