What is your (intended) major? A.Engineering B.Physics
C.Biomedical D.Other
Slide 3
How many semesters of high school physics courses? A.Absolutely
none. B.1 C.2 or more.
Slide 4
How many semesters of university physics courses? A.Absolutely
none. B.1 C.2 D.3 or more.
Slide 5
How many semesters of University Math courses? A.Absolutely
none. B.1 C.2 D.3 or more.
Slide 6
Would you like a review of the following topics? A.Algebra
B.Trigonometry C.Pre-calculus D.Other topic.
Slide 7
What is displacement? A.Term correct B.Units Correct C.Quantity
type correct. D.None correct Displacement of an object is a vector
quantity representing a change in its position. Basic MKS or SI
unit is meters=m (other units are km,miles,feet, furlong,)
Slide 8
What is velocity? A.Term correct B.Units Correct C.Quantity
type correct. D.None correct The velocity of an object is a vector
quantity representing the rate of change of its position accounting
for direction. Basic MKS or SI unit is meters/second=m/s (other
units are km/hour,miles/hour, furlong/fortnight,) The speed of an
object is a scalar quantity representing the magnitude of the rate
of change of position not accounting for direction. Basic MKS or SI
unit is meters/second (other units are km/hour,miles/hour,
furlong/fortnight,)
Slide 9
What is acceleration? A.Term correct B.Units Correct C.Quantity
type correct. D.None correct The acceleration of an object is a
vector quantity representing the rate of change in its velocity.
Basic MKS or SI unit is m/s/s=m/s 2.
https://www.youtube.com/watch?v=Zh1tU0bNg9M
http://www.holloman.af.mil/library/factsheets/factsheet_print.asp?fsID=6130&page=1
Rocket sled 157 g
Slide 10
What is mass? A.Term correct B.Units Correct C.Quantity type
correct. D.None correct In kinematics, the mass of an object is a
scalar quantity representing the resistance of a body to being
accelerated by a force. Basic MKS or SI unit is kilogram =kg (other
units are pounds, ounces, stone,)
http://profmattstrassler.com/articles-and-posts/the-higgs-particle/the-higgs-faq-2-0/
http://cms.web.cern.ch/news/observation-new-particle-mass-125-gev
http://cerncourier.com/cws/article/cern/53086
Slide 11
What is momentum? A.Term correct B.Units Correct C.Quantity
type correct. D.None correct The momentum of an object is a vector
quantity derived from the product of its mass with its velocity.
Basic MKS or SI unit is kg-m/s.
https://www.youtube.com/watch?v=Qdrr66ycc-E&feature=player_detailpage
http://en.wikipedia.org/wiki/TGV_world_speed_record
Slide 12
What is Force? A.Term correct B.Units Correct C.Quantity type
correct. D.None correct The (net) force acting on an object is a
vector quantity derived from the product of mass with acceleration.
Basic MKS or SI unit is kg-m/s 2 =N (Newton).
http://hyperphysics.phy-astr.gsu.edu/hbase/forces/funfor.html
Slide 13
What is kinetic energy? A.Term correct B.Units Correct
C.Quantity type correct. D.None correct The kinetic energy of an
object is a scalar quantity representing the energy of an object
due to its motion. Basic MKS or SI unit is kg-m 2 /s 2 =
Joule.
Slide 14
What is potential energy? A.Term correct B.Units Correct
C.Quantity type correct. D.None correct The potential energy of an
object is a scalar quantity representing the energy of an object
due to its position. Basic MKS or SI unit is kg-m 2 /s 2 = Joule.
Example: falling into black hole
Slide 15
What is Power? A.Term correct B.Units Correct C.Quantity type
correct. D.None correct In mechanical systems, power is a scalar
quantity equal to the scalar product of Force and velocity of an
object. Basic MKS or SI unit is kg-m 2 /s 3 = Joule/s=Watt. Power
is Rate of doing work (e.g. cyclist 500W) Rate of transferring
energy (e.g. Sun W 3.8 x10 26 W)
Slide 16
What is Torque? A.Term correct B.Units Correct C.Quantity type
correct. D.None correct The (net) torque acting on an object about
a pivot point is a vector quantity derived from the vector (cross)
product of the (net) Force with the distance of the point of
application of the force from the pivot point. Basic MKS or SI unit
is kg- m 2 /s 2 =Nm (Newton-meter).
Slide 17
Quadratic Equation A.Simplified expression correctly B.Term
correct C.Solutions correct D.Name of equation correct E.None
correct x 2 +2hx+h 2 =(x+h) 2 Procedure is known as Completing the
Square Solutions to ax 2 +bx+c=0 Name is Quadratic Equation
Slide 18
Stellar Distance Stellar Distance part a A.Formula correct
B.None correct Formula relating distance to parallax angle
Slide 19
Trigonometry For Right Triangles:
Slide 20
Trigonometry For Any Triangle:
Slide 21
Stellar Distance Stellar Distance part b A.correct B.Not
correct Conversion from AU to feet Ability to perform unit
conversions is important !!!!
Slide 22
Stellar Distance Stellar Distance part c A.Correct B.Not
correct
Slide 23
Stellar Distance Stellar Distance part d A.Formula correct
B.None correct
Slide 24
Stellar Distance Stellar Distance part e A.Formula correct
B.None correct
Slide 25
Vectors A.correct B.Not correct a)How far north? East? First
segment Total distance distance east distance north Total distance
distance east distance north
Slide 26
Vectors A.correct B.Not correct b)How far north? East? After
second segment Segment 2 distance Segment 2 d-east Segment 2
d-north Total distance distance east distance north
Slide 27
Vectors A.correct B.Not correct c)Bearing and time at 500
miles/hour for shortest distance Bearing should have been due north
Time should have been
Indefinite Integral A.correct B.Correct C.Correct D.correct
E.correct F.None correct
Slide 30
General Topics Mechanics Lecture 8, Slide 30 Kinematics
Description of Motion Force Dynamics-how objects change velocity
Energy Kinetic and Potential Conservation Laws Momentum and Energy
Collisions Elastic and In-elastic Rotations Torque/ Angular
Momentum/Statics
Slide 31
Problem Solving Techniques Mechanics Lecture 8, Slide 31
Visualize/Diagram Sketch problem Identify variables, input and what
we are trying to solve Free-body diagrams Express in Mathematical
Equations Scalars-1d Vectors-2d,3d Break into components System of
n-equations with n-unknowns Use Mathematical tools to solve:
Quadratic Equation Vector operations Trigonometry Conceptual
Understanding Does answer make sense?
Slide 32
Potential Problem Topics Mechanics Lecture 8, Slide 32
Projectile Motion Relative Motion - 2d Uniform Circular Motion
Forces Weight (near earth) Gravitational (satellite) Springs Normal
Force Tension Friction Free-Body Diagrams Work-Kinetic Energy
Potential Energy Center of Mass Conservation of Momentum Collisions
In-elastic Elastic Rotations Kinematics Dynamics Statics Moment of
Inertia Torque Angular Momentum
