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THE UNIVERSITY OF HONG KONG
Department of Physics
(Phys1050): Physics for Engineering Students
(Dec. 18th, 2012)
2:30 4:30 PM
This examination paper has 6 pages, containing 15 multiple choice questions and 4 problems.
Answer ALL of them, and put your answ
Kinematic equations (with constant acceleration a):
for rotational motion about a fixed axis (with constant angular acceleration ):
*Curvilinear Motion (plane polar coordinate):
v rer r e ; a ( r 2 )er ( r 2r )e
r
No need to memorize
*Curvilinear Motion
Phys1050 Quiz #113 (6th March 2014)
Name: UID:
There are 5 questions, answer all of them in the blank space below each question
Note: take the free-fall acceleration to be g = 9.8 m /s2
1. A 2.0 kg object strikes a stationary 8.0 kg object head on. Assu
PhyleSO Quiz #1A(61 March 2014)
UID:
Name:
There are 5 questions, answer all of them in the blank space below each question
Note: take the free»faIE acceieration to be g " 9.8 m [52
1. A stationary wood block of mass M on a frictionless table is red at
Phys1050 Quiz #2D
Name:
UID:
Answer all questions and put your answer in the blank space below each question.
Some physics constants and integration formulas:
Permittivity for free space 0=8.854 x 10-12 C2/(N m2)
Permeability for free space 0=4 x 10-7 T m
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PHYS1050 Physics for Engineering Students
Assignment 1 (Due date: 18th Feb., 5pm) Only question 2, 3, 5, and 6 will be marked and graded, but
you are encouraged to do all.
Please hand in your homework in HARDCOPY in the Assignment Box located in the corri
PHYS1050 Physics for Engineering Students
Assignment 2 (Due date: 4th March, 5pm) Questions #1 and #3-5 will be marked and graded.
Please hand in your homework in HARDCOPY in the Assignment Box located in the corridor
of the 1st Floor, CYM Phys. Bldg. Ple
Phys1050 HW #4
1. A proton moves perpendicular to a uniform magnetic field B at a speed of 1.90
acceleration of 2.10
2
1013m/s
107 m/s and experiences an
in the positive x direction when its velocity is in the positive z direction.
Determine the magnitude
Phys1050 Assignment 3 Spring 2014
Due date: April 10 (Thu), 2014
5:00pm
Please notice that only a subset of the questions in the homework
submitted will be graded and counted for Assignment marks.
1. Four charged particles are at the corners of a square o
Tutorial2_soln
Page 1
2.
3.
4.
5.
Picture the Problem Let T be the tension in
r
T
L
the line attached to the wall and L be the
length of the strut. The figure includes w, the
weight of the strut, for part (b). Because the
45
strut is in equilibrium, we ca
PHYS1050 Physics for Engineering Students
Spring 2014
Tutorial 2
1. (Jewett & Serway Chap 10, Prob 28) Two balls with masses M and m are connected by a
rigid rod of length L and negligible mass as shown in Figure 1. (a) For an axis perpendicular
to the ro
PHYS1050 Physics for Engineering Students
Spring 2014
Tutorial 4
1. One electron collides elastically with a second electron initially at rest. After
the collision, the radii of their trajectories are r1 and r2. The trajectories are
perpendicular to a uni
Phys1050 Physics for Engineering Students Spring 2014
Tutorial 3
1. A thin rod of length and uniform charge per unit length lies along the x axis as shown in the
figure below.
(a) Show that the electric field at P, a distance d from the rod along its perp
PHYS1050 Physics for Engineering Students
Spring 2014
Tutorial 1 Questions
1. A 4.0-kg block is lowered down a 37o incline a distance of 5.0 m from point A to point B
(Fig. 1). A constant horizontal force (F = 10 N) is applied to the block during motion.
Electricity and Magnetism
Chapter 9
Electric Fields & Gausss Law
Electric Charges
There are two kinds of electric charges
Called positive and negative
Negative charges are the type possessed by
electrons.
Positive charges are the type possessed by proto
Electricity and Magnetism
Chapter 13
Faradays Law and AC Circuits
EMF Produced by a Changing Magnetic Field
Section 13.1
Faradays Experiment
A primary coil on a iron ring is
connected to a switch and a
battery. A separate secondary coil
on the same iron r
Electricity and Magnetism
Chapter 12
Magnetic Fields
Magnetic Poles
Every magnet, regardless of its shape, has two poles:
north pole and south pole.
Poles exert forces on one another:
Like poles (N-N,S-S) repel each other
Unlike poles (N-S) attract each o
Electricity and Magnetism
Chapter 10
Electric Potential and Capacitance
Change of Electric Potential Energy
When a test charge q0 is placed in an electric field E , it experiences a
force from this field Fe qoE . When this charge is moved by a small
displ
Electricity and Magnetism
Chapter 11
Resistors and Direct-Current Circuits
Electric Current
Current is the rate of flow of charge through an area.
If Q is the amount of charge that passes through A in
time t, then the average current is
I avg
Q
t
If the r
Chapter 8
Simple Harmonic Motion (SHM)
8.1 Equation of Motion
A vibrating system for which the restoring force is directly
proportional to the negative of the displacement ( F kx) is said
to exhibit Simple Harmonic Motion (SHM), and the system is
referred