Newton's Law of Gravitation

Here's a great video to help you really understand this law. Khan Academy is the best!

Also, here's a quiz I made about this law to help anyone about to take a test on it study.

True or False

a.     Newton’s Third Law states every action has an equal and similar reaction.

b.     If the two objects have the same mass, then they have the same acceleration.

c.     For every one object, there is a gravitational force.

d.     GC is the symbol used for the gravitational constant.

Short Answer

a.     What are the three items the force of gravity depends on?

b.     Write out the two equations used to find force.

c.     When is the tide high? Low? Explain your reasoning.

Answers

1.     False: equal and OPPOSITE 

2.     True

3.     False: for every TWO objects

4.     False: G is the gravitational constant

5.     Mass of each object, distance between the two objects (radius), gravitational constant

6.     Fg=G m1m2/r(squared) and F=ma

7.     High= when moon is on that side of Earth; Low= when moon is not on that side of Earth; This is because the Moon has a gravitational attraction to the Earth, just like Earth has a gravitational attraction to the Moon.