Chapter 2
1D Kinematics
When an object moves along a line from an initial position xi to position xf, the Displacement is This can be either positive or negative.
xi xf xf xi
x = xf - xi.
x ( -)
x (+)
Distance is the total length of travel. This is alway
ECON320 Chapter10PracticeTest ProfessorC.JamesHueng 1) Whichofthefollowingstatementsaretrue? A) Abanksliabilitiesareitssourcesoffunds. B) Abanksbalancesheethasthepropertythattotalassetsequalthesumoftotalliabilitiesandequity capital. C) Abanksassetsareitsu
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PHYSICS 1210 Fall 2009 - Exam 2A Oct. 20, 2009
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9 am
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This is a closed book, closed notes exam.
1.1. The position graph given represents the
motion of a ball being rolled back and forth
between two children.
Show Answergst
a. Write a short description of the motion of
the ball for each one of the three regions
in the graph. H5]
b. Draw the bali's ve
MATH 1160 Review for Exam 3: Sections 4.5, 5.1 - 5.4, 6.1 - 6.5
1. Given the following angles, nd (i) both degree and radian measure, (ii) a positive and negative angle with is coterminal with , (iii) the reference angle and quadrant for , (iv) the six tr
Physics terminology
Hypothesis- a proposal intended to explain certain facts or observations.
Law- a generalization that describes recurring facts or events in nature.
Scientific Method- a method of investigation involving observation and
theory to test s
PHYSICS 1210 FALL 2010 EXAM 2 FORMULA SHEET
NOTES: YOU CAN ONLY USE FORMULAS ON THIS SHEET. Trigonometry c 2 a 2 b 2 (Pythagoras) c b c sin a c cos b a tan a b cot b opposite side b adjacent side a sin cos hypotenuse c hypotenuse c a
tan
opposite side b
PHYSICS 1210 FALL 2009 EXAM 1 FORMULA SHEET
NOTES: Trigonometry c 1) DO NOT WRITE ANYTHING ON THIS SHEET 2) YOU CAN ONLY USE FORMULAS ON THIS SHEET.
c 2 = a 2 + b 2 (Pythagoras) b = c sin a = c cos b = a tan sin = opposite side b = hypotenuse c cos = a =
2.1. A block of mass m = 0.2 kg is connected to the free end of a spring of elastic
constant k = 50 Nim suspended from the ceiling. Show AHSWBTESE
a. Find the acceleration of the block when the spring is extended 3.0 cm.
b. What is the extension of the sp
Q1 (1—4) as
PHYSICS 1220 « FALL 2012 - Exam 1
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Physics 130
General Physics
Fall 2012
Midterm Exam 2
October 30, 2012
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Instructions
1. This examination is closed book and closed notes. All your belongings
except a pen or pencil and a calculator should be put away and your
bookbag should be placed
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PHYSICS 1220 Spring 2009 - Exam 1
Feb. 12, 2009
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PHYSICS 1220 Spring 2015 - Exam 1A
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February 9, 2015
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PHYSICS 1220 — FALL 2014 — Exam 1
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on
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PHYSICS 1220 Spring 2009 - Exam 1
Feb. 12, 2009
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1
Economics 3229: Money, Banking and Financial Markets Fall 2010
Meeting Time pm. Mondays and Wednesdays from 12:00 pm to 12:50
Meeting Place Allen Auditorium (A&S). Course Instructor Name: George Chikhladze Office: 237 Professional Building Office Hours:
Chapter 8 Potential Energy and Conservation of Energy
Work done by gravity
d 90 o cos 90 o 0 Weight
W Fd cos
Weight
d
(a) If the object moves horizontally, gravity does NO work.
d
Weight
Weight
d
180
o
Weight
cos 180 o 1
d
o d0
cos 0 o 1
Weight
Weight
Wei
Uniform Circular Motion
Uniform circular motion is the motion of an object traveling at a constant speed v on a circular path of radius r.
Uniform circular motion is the motion of an object traveling at motion of an object traveling at (instantaneous) acc
Chapter 6
no static friction
Static Friction
No applied force,
A small applied force (not be able to move the block) static friction opposes the applied force
applied force increases, to a critical value, block is on the verge of moving static friction in
Newtons second law of motion
When a net force acts on an object, the acceleration that results is directly proportional to the net force and has a magnitude that is inversely proportional to the mass (m) of the object.
r rF a= m
net
r r Fnet = ma
r r = ma
Chapter 5 Newtons Laws of Motion
Forces and Mass Newtons Laws Types of Forces
Dynamics (Newtonian Mechanics)
What causes the motion of an object? What is force? What is the connection between force and Motion?
Force
A force is a push or a pull on an obj
Projectile Motion (General Launch Angle)
x = x0 + v 0x t
1 y = y0 + v0yt + a yt 2 2
ay = - 9.8 m/s2 The trajectory is a parabola
v0 y
H
Projectile Motion
v x = v0x
vx t
v0x v0x
v y = v 0 y + a yt
vy
v0 v0y
v0x v0x
v0x
- v0y
Example
A football is kicked at
4-1 Motion in Two Dimensions
If velocity is constant, motion is along a straight line:
= (v0t ) sin = (v 0 sin )t
= (v0 sin )t
= (v0 t ) cos = (v 0 cos )t
= (v 0 cos )t
The turtles two dimensional motion can be treated as a combination of separate x and y
Physics Lab : ARCHIMEDES PRINCIPLE AND BUOYANCY LAB Pre-Lab Exercise
1. A duck is floating on a lake with 25% of its volume beneath the water. What is the average density of the duck? The density of water is 1000 kg/m3. (This problem is related to Activit