PHYS 2070 All Notes Through 9/7/15
PHYS 2070 All Notes Through 9/7/15 PHYS 2070
Popular in General Physics 1
Popular in Physics 2
This 3 page Class Notes was uploaded by chelsea1023 on Monday September 7, 2015. The Class Notes belongs to PHYS 2070 at University of Toledo taught by Dr. Scott Lee in Summer 2015. Since its upload, it has received 209 views. For similar materials see General Physics 1 in Physics 2 at University of Toledo.
Reviews for PHYS 2070 All Notes Through 9/7/15
I'm pretty sure these materials are like the Rosetta Stone of note taking. Thanks Chelsea!!!
-Mrs. Stephon Wyman
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 09/07/15
Physics 2070 Dr Scott Lee Chapter One 0 The goal of physics is to use experiments and theories to better understand the physical world Measurements and Quantities Length L 0 Mass M 0 Time T Systems of Measurement Standardized 0 De ned by government 0 SI System International 0 De ned by an international group 0 Main system used in physics Uncertainty in Measurements Use rules for signi cant gures All nonzero digits are signi cant Zeros are signi cant if in between other digits or after a decimal point The least accurate smallest number of signi cant gures is used If multiplying or dividing the number of sig gs in the nal answer is determined by the number with the smallest number of sig gs in the calculation 0 If adding or subtracting the result will contain sig gs equal to the smallest number of decimal places in the calculation Conversions It is common in physics to convert between units 0 This can be done algebraically in a way that the units 39cancel39 Trigonometry SOHCAHTOA Sin x Opposite side Hypotenuse Cosine x Adjacent side Hypotenuse Tangent x Opposite sideAdjacent side Pythagorean theorem rquot2xquot2yquot2 To nd an angle use inverse trig functions Chapter Two Motion in One Dimension 0 Any motion involves velocity displacement and acceleration Position is used in terms of a frame of reference coordinates comparisons etc 0 Displacement change in position 0 Final position initial position 0 Measured in meters 0 Not the same thing as distance Vector quantities must include both a magnitude and direction displacement velocity acceleration Scalar quantities need magnitude only speed distance 0 Average speed is measured by distance time vdt o Ignores variations in speed 0 Total distance and total time are all that39s important 0 Units are ms 0 Average velocity is the rate at which a displacement occurs 0 Displacementtime 0 Can be positive or negative 0 Direction will equal the direction of displacement o Untis are ms o If graphed the slope of the line is equal to the average velocity Acceleration is present if velocity is changing o It is the rate of change of the velocity 0 Velocity time 0 Units are msquot2 Average acceleration is a vector o If sign of velocity and acceleration are the same the object is speeding UP o If different object is slowing down 0 Negative acceleration doesn39t always mean slowing down 0 Accelerations are assumed to be constant Free Fall 0 When only gravity is acting on an object Constant acceleration of 980 msquot2 Can be considered 39falling39 if going upwards Chapter Three Vectors and TwoDimensional Motion 0 Two vectors are equal if they have the same magnitude and direction Adding Vectors Geometrically Draw rst vector using appropriate length and direction Draw next vector using same scale and speci ed direction Continue drawing all vectors The resultant is the straight line going from the start of the rst vector to the end of the last one Measure this length and the angle 0 Component part 0 Helpful to use rectangular components
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'