ISP chapter 4 - Chapter 4 HOW DO WE DESCRIBE MOTION? Speed-...

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Chapter 4 HOW DO WE DESCRIBE MOTION? Speed - distance traveled in given time d/ t Velocity - speed and direction Acceleration - change in velocity in a given time ? Which is NOT accelerating? A car moving down the freeway at 75 miles/hour This is because its not changing its direction or speed Acceleration owing to gravity is the same for all objects Gravity = 9.8 m/s 2 Near earths surface gravity increases the downward velocity by about 10 meters Momentum = mass x velocity o The only way to change and objects mom is to apply a force to it Mass = total amount of matter in and object Weight = the force that gravity exerts on an object HOW DID NEWTON CHANGE THE VIEW OF THE UNIVERSE Theory of gravity Laws of motion laid the foundation of physics Also invented calc, built first reflecting telescope, explored nature of light 3 LAWS OFMOTION 1 st - An object moves at a constant velocity unless a force acts to change its speed or direction 2 nd - force=mass x acceleration
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This note was uploaded on 11/16/2011 for the course ISP 205 taught by Professor Donahue during the Fall '08 term at Michigan State University.

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ISP chapter 4 - Chapter 4 HOW DO WE DESCRIBE MOTION? Speed-...

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