Ch5. Momentum and Impulse
5.1
y 5.2
y 5.3
y 5.4
y
Linear Momentum
Impulse
Conservation of Linear Momentum
Momentum and Kinetic Energy in
Collisions
x Elastic Collisions in One Dimension
x Inelastic Collisions in One Dimension
x Collisions in Two Dimension
Lecture 4, Sept. 12, 2013
Matters arising
Lecture notes will be uploaded before
class, most likely one day ahead;
Any problem with the pace? Too fast? Too
slow?
Any problems with lectures?
Any problems with tutorial/exercise
classes?
Any other issues?
Rev
Lecture 11, Oct. 10, 2013
6.1 The Rotational Variables
The linear and angular velocity are related in
the following vector form:
v = r
In the case of the uniform
circular motion, the speed
(v) of the particle is constant.
This implies that angular velocit
Lecture 14, Oct. 23, 2013
Review
1. Conservation of angular momentum
L = r p = m (r v )
dL
= net
Similar to:
dt
L = a constant, if no net external torque
Review
2. Requirements of equilibrium
An object is said to be in
equilibrium if:
1. the linear
Lecture 18, Nov. 07, 2013
Quiz
Tell whether a motion is SHM:
Find the frequency and period of a SHM:
x(t ) = 10 cos(2 t + 0.5 )
10.1Simple
10.1
Simple Harmonic Motion Energy
To illustrate the energy in Simple Harmonic
Motion, we consider the system of lin
Lecture 21, Nov. 19, 2013
Ch12. Thermodynamics and
Heat Transfer Mechanisms
12.1
12.2
12.3
12.4
12.5
12.6
Temperature
The Zeroth Law of Thermodynamics
Measuring Temperature
Thermal Expansion
Temperature and Heat
The Absorption of Heat by Solids
and Liquid
Ch11. Wave and Sound
11.1
11.2
11.3
11.4
11.5
11.6
Types of Waves
Transverse and Longitudinal Waves
Wavelength and Frequency
The Speed of Traveling Waves
Wave on a Stretched String
The Principle of Superposition for
Waves
11.7 Interference of Waves
11.8 S
Lecture 15, Oct. 29, 2013
Review
1. Fluid density and pressure
p = p0 + gh
pressure at depth h
2. Pascals Principle Hydraulic Lever
p = pext
p =
Fi Fo
A
=
Fo = Fi o
Ai Ao
Ai
Fo
Fi
Ai
do
Ao
di
Oil
Review
3.The Archimedes' principle :
When a body is fully
Lecture 23, Nov. 28, 2013
Review
Temperature
The zero-th law of thermodynamics:
thermal equilibrium
Thermal expansion
Heat capacity
Heat transfer
The Absorption of Heat by Gases?
12.7 Heat and Work
The system (the gas) is
changed from initial state
(state
Lecture 16, Oct. 31, 2013
Matters arising
1.Teaching pace is too fast. Too many
topics are covered in one term.
S1: I will slow down the pace. Students please let
me know immediately if anything is unclear.
I will make adjustment to the topics to be
cover
Lecture 20, Nov. 14, 2013
11.5 Wave on a Stretched String
wave speed
We have showed that the speed of a wave is
related to the waves wavelength and
frequency.
However the speed of wave should be set by
the properties of the medium.
In this section, we wi
Lecture 12, Oct. 15, 2013
Announcement
Mid-term:
Date: 22 Oct 2013 (Tue)
Time: 9:30 - 11:15 am
Venue: PHYS1110A: Science Center L1
Content: Lectures 1-9
Format: 5 long questions
Course information
Teaching assistants:
Mr. DENG Naijing
Ms. ZHAI He
Mr. HE M
Lecture 22, Nov. 25, 2013
Summary
Temperature
The zero-th law of thermodynamics:
thermal equilibrium
Thermal expansion
Heat capacity
Heat transfer
12.5 Temperature and Heat
If the temperature of a system TS is not equal to
the environment temperature TE,
Ch2. Force and Motion
2.1
y 2.2
y 2.3
y 2.4
y 2.5
y
Newtonian Mechanics
Newtons First Law of Motion
Newtons Second Law of Motion
Newtons Third Law of Motion
Some Particular Forces
Read Ch. 5 & 6 of Halliday, Resnick, and Walker (HRW)
1
2.1 Newtonian Mecha
Ch11. Thermodynamics and Heat
Transfer Mechanisms
11.1
11.2
11.3
11.4
11.5
11.6
Temperature
The Zeroth Law of Thermodynamics
Measuring Temperature
Thermal Expansion
Temperature and Heat
The Absorption of Heat by Solids
and Liquids
11.7 Heat and Work
Ch3. Kinetic Energy and Work
3.1
y 3.2
y 3.3
y 3.4
y 3.5
y
Energy
Kinetic Energy
Work
Work-Kinetic Energy Theorem
Work Done
x by the Gravitational Force
x by a Spring Force
x by a General Variable Force
y
3.6 Power
Read Ch. 7 of Halliday, Resnick, and Wal
PHYS1110F Tutorial 1, 22 September 2015
This tutorial intends to review and learn more about friction and circular motion.
A car of mass m = 2000 kg travels around a flat circular race track of radius r = 85 m. The car
starts at rest, and its speed increa
PHYS1110F, Tutorial 5, 20 Oct 2015
This tutorial intends to review and learn more about momentum and impulse
Consider a frictionless track as shown below. The height of the track = 3 m and a spring
is located at D with spring constant k = 300N/m. The dist
PHYS1110F Tutorial 4, 13 October 2015
This tutorial intends to review and learn more about energy.
As illustrated in the following figure, a 2 kg block sitting on a frictionless incline is connected to a
massless and unstretched spring which has a spring
PHYS 1110F, Tutorial 7, 3 Nov 2015
This tutorial intends to review and learn more about rotation and rolling
A bowler throws a ball of radius R and mass M along the lane. The lane has friction. The
ball moves initially with a velocity vo without rotation.
PHYS1110F Tutorial 6, 27 October 2015
We will review what we have learned so far.
v
1. A particle of mass m has position vector: r t k cos ti k sin tj , where k and
are positive constants. Find the magnitude and direction of the net force acting on the
p
PHYS1110F Tutorial 3
6 Oct, 2015
Review Questions
Question 1
v
Find a unit vector in the xy plane which is perpendicular to a 3x 5 y z
Question 2
v
v
Let a and b be two vectors in the xy plane making angles and with the x axis,
respectively. Use vector al
PHYS1110F Tutorial 2, 29 September 2015
This tutorial intends to review and learn more about kinetic energy and work done in
circular motion.
As illustrated in the following figure, two identical small spheres P and Q of mass m =
0.1 kg are connected by m
PHYS1110F Tutorial 8
This tutorial intends to review and learn more about equilibrium.
A ladder, which has uniform density and mass m, is leaned against
a frictionless vertical wall at angle . The total length of the ladder
is L. The lower end of the ladd
2014-2015
Outline of Answers
PHYS _1110_: _ Engineering Physics I _
Question 1
Marks
Answer
Answers to MCs
1. b
6. d
11. a
(a)
2. a
7. c
12. c
3. d
8. c
13. b
4. b
9. c
14. a
5. c
10. b
15. c
By linear momentum conservation and kinetic energy conservation
2015-2016
Outline of Answers
PHYS _1110_: _Engineering Physics: Mechanics & Thermodynamics_
Question 1
Marks
Answer
Answers to MCs
1. d
6. a
11. a
(i)
1+1 mark
(ii)
1 mark
1 mark (iii)
T cos mg ,
mg
cos
,
T
(1)
T sin m 2 r ,
(2)
From the diagram r a sin
Page 1 of 6
Copyright Reserved
The Chinese University of Hong Kong
Course Examination 1st Term, 201415
Course Code & Title : PHYS 1110
Time allowed :
2
Engineering Physics I
hours
minutes
00
Student I.D. No. :
Seat No. :
ANSWER ALL QUESTIONS.
To