Unit 2: Forces at a Distance
Gravity
It’s a good thing this mountain climber’s safety gear is working, because it’s a long way down to the ground! If he were to fall, he’d be moving really fast by the time he got there. The higher any object starts falling from above Earth’s surface, the faster it’s traveling by the time it reaches the ground. Do you know why? The reason is gravity.
FORCE = MASS X GRAVITY (9.8 m/s2)
Misconceptions about Falling Objects
Powerpoint Presentation on Gravity
ELECTRICITY
- Great video 8:34 minutes: electrical charges, materials affecting flow, and circuits
ELECTRICITY: CURRENTS AND RESISTANCE, OHM'S LAW
https://docs.google.com/a/smrschool.org/viewer?a=v&pid=sites&srcid=bXN2bC5rMTIud2EudXN8c2RhdmlzfGd4OmYyMDhhMjIxMmRmNjg5OA
Bill Nye Magnetism Video
https://vimeo.com/121217374
Magnet Review Quiz:
http://www.softschools.com/quizzes/science/magnetism/quiz767.html