University of Victoria
Phys 111 ~ Midterm I
, Instructor: Dr. M. Laidlaw (A01, A02 82: A03)
Time Allowed: 90 minutes
Name:
Student Number:
This exam consists of 6 sequentially numbered pages, including the cover
page (this one)
This exam consists of 2
PHYS 110 Midterm II example Fall 2016
This example is produced for the use of students registered in PHYS
110 during the September December 2016 term at UVic. It may not be
otherwise reproduced or distributed.
c
M. Laidlaw 2016
Copyright M. Laidlaw P110 2
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Your name
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Phys 1101/1120 - Surrey Campus
Expt. 4: Hooke's Law
DATA
Hanger and added masses are
weighed together for Total Mass
Total Mass:
m (
Energy
Hydro Electric Plant in Niagara, it
generates 4 million Kilowatts
As the water falls through a
great height, its potential energy
is converted to kinetic energy.
This kinetic energy allows the
water to do work to drive a
turbine which generates
ele
INTRODUCTION TO UNCERTAINTIES:
A measurement by its very nature cannot be exact and it must be
recognized that realistic error limits must be assigned to its value. If an
experimenter claims too high a precision, he will mislead those who use
his result f
Work and Power
Work
The term work was introduced when steam engines were used to
lift buckets filled with water from mines. If we have a constant
force that is acting on an object during a certain distance and we
graph it we have the following.
Work
The W
Equilibrium
A body is in equilibrium if the sum of forces and
torques acting on it are equal to zero, this is:
! = 0
! = 0
Example: For the system shown below find the following
a) Draw the free body diagram.
b) Find the tensions in the cords shown so tha
Impulse, Linear Momentum and
Collisions
Impulse and Linear Momentum
Newtons Second Law:
=
If we use the average acceleration we have:
& (
= =
= & (
= = Impulse N -
= = Linear Momentum N -
Newtons Second Law (original definition):
= =
=
23
Energy Part II
Non-Conservative Forces
Non-Conservative Forces will produce losses in the
system. In most cases friction will be a nonconservative that can produce work. If non-conservative
forces are present in a system, then it will no be able to
transf
My physics lab
Math formats: subscript, exponent, fraction, square root, vector,
absolute value, etc.
For this math
format
Type this from your
keyboard
y3
_
(underbar)
Numeric keyboard to
enter _
(subscript)
102
(exponent)
On a tablet or
smartphone, open
Physics 326
Solutions
Due Friday, September 27, 2013
Assignment #3
1. Call the source vector to the charge on the positive and negative axis, r+ and r
respectively.
a. The vectors are:
r+ = ax
r = ax
r+ = r
Physics 326
Solutions
Assignment 2
Due: Tuesday September 20, 2013
1.
a.
i ( v) = i
x
y
z
x
y
=
z
vx
vy
vz
vz vy vz vx + vy vx =
x y
z y x
z
z x
y
x y y x vz and so on. = 0
b.
x
y
z
(f ) = i x
y
z
Physics 326
Assignment 2
Due: Wednesday September 24, 2014
1. Given a function f (x, y, z) , and a vector function v(x, y, z) , show that:
a. ( v ) = 0
b. ( f ) = 0
[4]
2. Given the vector function F(r )
Physics 326
Assignment 1 Solutions
!
1. Given r (t) = a cos(t) x + asin(t) y , where a is a constant and
0 t 2 ,
a. The dot product gives zero, so they are perpendicular.
!
r (t) = a cos(t) x + asin(t) y
!
dr (t)
= a
Physics 326
Assignment 1
Due: Friday September 12, 2014
!
1. A vector is given by r (t) = a cos(t) x + asin(t) y , where a is a constant and
0 t 2 .
!
dr (t)
!
a. Show that
is perpendicular to r (t) . (Hint:
Physics 326
Assignment #3
Due: Wednesday, October 8, 2014
1. Consider two charges, each +Q , located at x = a . For a point
r = xx + yy + zz :
y
+Q
+Q
-a
a
x
Physics 326
Assignment #6
Due: Friday, November 28, 2014
1. A conducting sphere of radius a is charged to a potential V and spun about a
diameter with angular velocity .
V (r = a) 0V
a. Show that the surfa
Physics 326
Assignment #5
Due: Friday, November 14, 2013
1. A spherical shell of radius R carries a uniform surface charge 0 on the
northern hemisphere and a uniform surface charge 0 on the southern
hemis
Physics 326
Solutions
Assignment #4
Due: Friday, October 24, 2014
1. The charge density on the metal sphere of radius, R, is:
Q
=
4 R 2
The force per unit area on the surface is given by:
2
f=
n
2 0
Physics 326
Assignment #5
Due: Friday, November 14, 2014
1. A spherical shell of radius R carries a uniform surface charge 0 on the
northern hemisphere and a uniform surface charge 0 on the southern
hemisphe
Physics 326
Assignment #4
Due: Friday, October 24, 2014
1. Consider a metal sphere of radius R that has a total charge of Q. What is the force
on one hemisphere by the other?
[ 8]
2. A long coax
Multiple-slit interference (ignoring single-slit diffraction)
Two-slit experiment: add two plane waves. Phase difference is d = k d sin q where k = 2 p l is the wave vector, and d
is the distance between the two slits. Far from the slits, sin q z L, wher