Relativity
Galileo and Einstein Time dilation Length contraction
Two coordinate systems
xyz displaced by X = X z X y (x,y,z) y z
x
x
Two coordinate systems
xyz displaced by X = X z X y z (x,y,z) y
x x = xX y = y z = z
x
Two coordinate systems
xyz moving a
Phys102 Written Assignment #8
Textbook (Giancoli, SFU edition), page 947, question #19.
19. Two 0.010-mm-wide slits are 0.030mm apart (center to center). Determine (a) the
spacing between interference fringes for 580 nm light on a screen 1.0 m away and (b
95. A parallel-plate capacitor with plate area A 2.0 m2 and plate separation d 3.0 mm is
connected to a 45-V battery (Fig. 2440a). (a) Determine the charge on the capacitor, the
electric field, the capacitance, and the energy stored in the capacitor. (b)
Phys102 Assignment Cover Sheet
First Name:_ Last Name:_
Mark: _
Student ID:_
Section: _
Date: _
Phys102 Written Assignment #6
Due Wed/Thur Nov 3/4, by the end of your tutorial.
Textbook (Giancoli, SFU edition), page756, question #58.
58. A long horizontal
Physics 120
Term Test #1
Friday October 15, 2004 This exam sheet is double-sided. Please attempt all questions. Only a basic, non-programmable calculator is allowed. You have approximately 50 minutes to complete this test. Your work must be neat and easy
Physics 120
Some Sample Term Test #2 questions
I could not nd a copy of the second term test from the last time I taught this class. Below are some appropriate problems I have created over the years which cover the relevant material, most of these questio
Forces
Galieo Galilei
Would it go on forever?
Frictionless Puck
Dry ice inside
Hole in bottom lets CO2 gas form a cushion
Nearly frictionless motion gives a uniform velocity.
Elastic loop shows force
no force
force
v = (2.4cm/flash ) t
2
More force
v = (
Momentum and Impulse
Conservation Laws
Impulse
Fracket on ball
When the racket hits the ball F(t)racket on ball = F (t) ball on racket Time interval from ti to tf is the same Fr on b = mb (dvb/dt) Fr on b dt = mb dvb Dene Impulse
tf
Impulse
J on ball =
ti
Rotations
Linear Motion
Kepler's 2nd Law Equal areas are swept out in equal times.
vt vrt vrt x vrt r vt vt
Central Force
Kepler's 2nd Law Equal areas are swept out in equal times.
v2=(Fc2/m)t v rt v t v1=(Fc1/m)t v rt x v rt v t r
v is the component of
PHYSICS 102
9 7 - 3
Midterm I
Total: 40 marks
Constants:
Coulomb's force constant k = 9.0109 Nm2/C2
Permittivity of free space so = 8.85-10'12 C2/Nn12
Permeability of free space no = 41t-10'7 Tin/A
Electron charge 3 = -l.60-10'19 c
Avogadro's number N A =
Collisions
One can use the explosion of a spring between two carts (like you did in the lab) to measure the mass of
an unknown object. Suppose that both carts have the same mass, m, which is known and that the
unknown object has mass M. Thus the cart carr
Ch. 2: Kinematics The Mathematics of Motion in a Straight Line
Goal: Learn how to solve problems about motion in a straight line.
Motion DiagramGraph
8 7 6 5 4 3 2 1 x (m) 6 5 4 3 2 1 0 1 2 3 4 5 t (s) 6 7 8 9
Average Velocity
6 x (m) 5 4 3 2 1 0 1 2 3 4
Concepts of Motion
The goal of chapter 1 is to introduce fundamental concepts of motion
Berenice Abbott
Displacement Velocity
!t = ?
General Strategy
Motion Diagrams
General Strategy
Time
Operational Denition: Choose a periodic process as a time
standar
Force and more force
Notice:
If anyone wishes to take Physics 121, in Burnaby, during the summer, let me know.
Fan Cart Experiment
Experiment acceleration mass mC mC +mB mC mC +mB force FL FL FH FH Low speed, cart a = 0.28 m/s2 LC only Low speed, cart a =
8Fh rsph @FCsxFRsr&vCCFre"Ct FiphCubr&FSu jw v ed u y w ce hi e `t e i xcc de `t w ` he w e bt ed e c t w w u c v y e `t th `t wc tced i w y uec h ed e y h th `t y w cc h i e `t d y e hi ce d e `t et x h Xph Se8wvXtr&rC"zdhCF$eCnXspC&ssAFa"n"zwxpt$Fpdhdhg
Dynamics I
Motion along a line
Weight
m g(Y)
g(X)
The earth pulls all objects towards its centre. The force is its weight, Fgrav, or w. It depends on 1. m, the object mass (doesnt depend on location) s 2. g(r), the gravitational strength where it is Fgrav
Gravity
-Newton's Universal Law- Not "what it is" but "what it does".
m1
What Gravity Does
F All objects pull all other objects The forces on two objects are r equal in magnitude opposite in direction Proportional to masses of each object m 1m 2 F Inverse
Physics 102 2005-1
VECTOR ADDITION
Written assignment: (10 marks) due Jan 21, 2005 at 8:30 am
Please answer the following question clearly, step-by-step, starting with a careful
diagram.
Hand it in to the appropriate wooden box marked Phys 102 (A-L or M-Z
Spring 2005
D1: MWF 9:30
Dr J. Thewalt
Office: SSB 8103
PHYSICS 102-3*
General Physics II
TEXTBOOK:
"Physics: Principles with Applications"
Author: Giancoli (6th ed)
Publisher: Pearson
COURSE DESCRIPTION:
A general survey course for life science students.
Phys102 Assignment Cover Sheet
First Name:_ Last Name:_
Mark: _
Student ID:_
Section: _
Date: _
Phys102 Written Assignment #7
Textbook (Giancoli, SFU edition), page864, question #72.
72.
A slab of thickness D, whose two faces are parallel, has index of re
Sunday, 22 June, 14
6/16/14
1. A step-up transformer increases 50 V to 1500 V. If the current in the
secondary coil is 0.0025 A, what is the current in the primary coil?
A. 0.0000833 A
B. 0.0025 A
C. 0.075 A
D. 2.25 A
E. None of the above
Sunday, 22 June,
6/23/14
1.
An observer at point O is facing a mirror and observes a light
source S. Where does the observer perceive the mirror image of
the source to be located?
A. 1
mirror
3
O
B. 2
1
C. 3
S
2
D. 4
E. There is no mirror image
Friday, 27 June, 14
4
Answe
6/02/14
1.
Which of the following is true about the Earths magnetic field?
A. the magnetic pole in the geographic north is a south magnetic
pole
B. the magnetic poles are not located exactly at the geographic
poles of the Earth
C. the magnetic pole in the
ENSC 180 Introduction to Engineering Analysis Tools
Assignment #1: Basic MATLAB Syntax
Instructions
The assignment is due:
Please upload your MATLAB code to the SFU Canvas page for ENSC 180
Questions that do not explicitly ask for writing functions should