Forces and Interactions

H	H			*Forces and Newton's Laws of Motion*

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		Newton's Three Laws of Motion
		"If I have seen further it is by standing on the shoulders of giants." A Short History of Nearly Everything by Bill Bryson				click for Wikipedia
		I, II, III


	*How do we measure mass?*
	and we can also use Newton's Second Law

	The Four Fundamental Forces Gravity Electromagnetism Weak Nuclear Force Strong Nuclear Force
		*Mechancical Universe*
			*Inertial Frames of Reference*
						A frame of reference in which Newton's first law is valid. Newton's first law can be used to define what we mean by an inertial frame of reference, it is sometimes called the law of inertia. P195
	*Freebody Diagrams*

			*Freebody Diagram*

					*Freebody Diagram*
					Forces cause a change in motion. A change in the state of an object's motion. There is always an increase or decrease in velocity if the Forces on an object are unbalanced. Tony's Forces
			Applications to Newton's Laws