UNC-Chapel Hill PHYS 104 - Final Exam Study Guide (12 pages)

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Final Exam Study Guide



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Final Exam Study Guide

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Pages:
12
Type:
Study Guide
School:
University of North Carolina at Chapel Hill
Course:
Phys 104 - General Physics I
Edition:
1

Unformatted text preview:

Phys 104 Final Study Guide Lecture 1 August 25 If you double the radius of a blowfish by what factor does the volume increase The volume increases by a factor of 8 The formula for V is 4 3 pi r 3 If you change the formula to 4 3 pi 2r 3 and carry out the math you will 8 V What is the formula for density density mass volume Lecture 2 August 27 What functions of a graph should you consider when determining best fit quadratic linear exponential power Power Laws Know how to carry out the math involving exponents What are the two systems of units SI metric and the Imperial British system Conversion factor for kg and lbs 1 000 kg 2 205 lb Conversion factor for mg and kg 1 mg 1 x 10 6 kg Lecture 3 September 3 Describe a push and a pull An example of force They result from an interaction between two bodies or a body and its environment What do you need to describe a force Magnitude direction unit What is the unit for force Newton What are quantities with direction called Vector quantities What are examples of scalar quantities Surface area volume density Basically explain gravitational force Weight of an object W Force exerted by the earth In what direction are normal forces Perpendicular to the contact surface According to Newton s first law when an object is at rest or moving at constant velocity what is the sum of the forces Net force 0 F B on A F A on B is an example of what Newton s third law Lecture 4 September 8 Define displacement Change in position in meters Is displacement a scalar or vector quality Vector because it has magnitude and direction Basically speaking what is velocity The rate of change in position basically the speed Describe the velocity of fast and slow objects Fast objects experience large changes in small amounts of time Small objects experience small changes in large amounts of time Purpose of position vs time graph Object is either speeding up or slowing down Purpose of velocity vs time graph Acceleration slope Newton s 2nd Law Equation Fnet m a



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