Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH 1801 Foundations of Physics I
Problem Set No. 1
Posted: Aug 14, 2014
Submission required by 5pm, Sep. 16. Please submit to your TAs of
Q: A monkey hangs from a branch of a tree. A hunter aims
their rifle at a monkey. At the very instant the hunter pulls
the trigger, the monkey gets startled by the sound, lets go of
the branch, and falls from the tree. The question is: will the
bullet sti
Lecture2:
Motioninonedimensionandtwo
dimensions
1
Quantitiesin1DMotion
n
Threephysicalquantities:
n
n
n
Displacement
Velocity
Acceleration
2
Displacement
n
Definedasthechangeinposition
n
Dx xf - xi
n
fstandsforfinalandistandsforinitial
xi
xf
Dx
3
Average
Thermal Physics
Summary of Important
Concepts of Lecture 6
1
What is Thermal Physics?
The study of:
Temperature, heat, internal energy
How these affect matter
Heat transfer
Harnessing of thermal energy
to do work (thermodynamics)
2
What is Heat?
Objects a
Lecture3:
LawsofMotion
SirIsaacNewton(16421727)
1
Forces
n
Usuallythinkofaforceasa
pushorpull
n
Vectorquantity
n
SIunit:1Newton(=1kg.m/s2)
n
Contactforcesinvolvephysical
contactbetweentwoobjects
n
Fieldforcesactthroughempty
space
n Nophysicalcontactis
req
Lecture 4
Momentum and Energy
1
Dont worryThey dont understand either!
quantity of
motion
momento
mv
Galileo
mv2
vis viva
Leibnitz
=mv
Descartes
1/2mv2
Coriolis
DAlembert
2
Linear Momentum
The linear momentum of an object of
r
v
mass m moving with velocit
Lecture 5
Collision and Rotation
1
One-dimensional elastic
m1v1i +
collisionsm2v2i =m1v1 f +m2v2 f
v1i +v1 f =v2i +v2 f
Special cases
1.
2.
m1 <m2 and v2i = 0
3.
+x
m1 = m2
m1 >m2 and v2i = 0
2
One-dimensional elastic
collisionsv +v =v +v
m v +m v =m v +m
Lecture1
PhysicalQuantitiesandMeasurements
1
StandardsofLength,Mass
andTime
n
Threefundamentalquantitiesinmechanics:
Length
Mass
n
Time
Otherquantitiescanbederivedfromthese
three
2
UnitsforPhysicalQuantities
n
Tocommunicatetheresultofa
measurementforaphys
Thermal Physics
Summary of Important
Concepts of Lecture 7
Ideal Gas
An ideal gas is a collection of atoms or
molecules that move randomly and exert
no long-range force on one another.
Each particle is individually point-like,
occupying a negligible volum
PH1808 Part 2
Thermal Physics
Lecture 8: Energy
in Thermal Processes
Cesare Soci
[email protected]
SPMS-PAP-03-03
Office hours: 4:30-6:30pm, every Monday
Energy in Thermal
Processes
1. Heat and Internal Energy
2
Pressure of an Ideal Gas
2 N 1 _
P = m v 2
PH1808 Part 2
Thermal Physics
Lecture 8: Energy
in Thermal Processes
Cesare Soci
[email protected]
SPMS-PAP-03-03
Office hours: 4:30-6:30pm, every Monday
Agenda
1. Heat and Internal Energy
Mechanical Equivalent of Heat
2. Calorimetry
Specific heat
Latent h
Thermal Physics
Summary of Important
Concepts of Lecture 9
Work Done on a Gas
In thermodynamic equilibrium (every part of the gas is at the
same T and P):
Won gas = PV
The work done on the gas (Won gas) is opposite to the work
done by the gas on the envir
PH1808 Part 2
Thermal Physics
Lecture 9: First Law of
Thermodynamics
Cesare Soci
[email protected]
SPMS-PAP-03-03
Office hours: 4:30-6:30pm, every Monday
Agenda
Introduction
Energy and thermodynamics
Work in Thermodynamic Processes
PV diagrams
The First La
PH1801 Part 2
Thermal Physics
Lecture 10: Second Law of
Thermodynamics
Cesare Soci
[email protected]
SPMS-PAP-03-03
Office hours: 4:30-6:30pm, every Monday
Agenda
Heat Engines
Work and thermal efficiency
Refrigerators and heat pumps
The Second Law of Therm
Thermal Physics
Summary of Important
Concepts of Lecture 10
Heat Engines
A heat engine is a system that partially converts
thermal energy into other forms, such as electrical
or mechanical energy, that can be used to do work
If the working substance is a
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801/SM2 Foundations of Physics I
Problem Set No. 2 Solutions
1
1. d (9.8)t12 336t2 , t1 t2 2.4 , so 336t2 4.9(2.4 t2 )2 . After solvin
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801/SM2 Foundations of Physics I
Problem Set No. 3 Solutions
F2x
F1x
F1y F2y
1. Indicate x- and y-directions and break down the force
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH 1801 Foundations of Physics I
Problem Set No. 2
Posted: Aug 21, 2014
Submission required by 5pm, Aug. 28. Please submit to your TAs of
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH 1801 Foundations of Physics I
Problem Set No. 3
Posted: Sep 4, 2014
Submission required by 5pm, Sep. 11. Please submit to your TAs off
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH 1801 Foundations of Physics I
Problem Set No. 6
Posted: Oct 9, 2014
-Conceptual questions:
1. What is the difference between temperatu
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 7
Posted: Oct. 16, 2014
-Conceptual questions:
1. What is an ideal gas?
2. What is a mole
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH 1801 Foundations of Physics I
Problem Set No. 6
Posted: Oct 9, 2014
-Problem Solutions
1. Assume that the temperature and the length a
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 7
Posted: Oct. 24, 2014
-Problem Solutions
1. According PV = nRT, we have V = nRT/P,
So V
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 8
Posted: Oct. 23, 2014
-Conceptual questions:
1.
2.
3.
4.
Is temperature a macroscopic o
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 9
Posted: Nov. 6, 2014
-Conceptual questions:
1. Explain why the temperature of a gas inc
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 8
Posted: Oct. 23, 2014
-Conceptual Solutions
1. Temperature is a macroscopic variable, m
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 10
No submission required
-Conceptual questions:
1. 1. Thermophotovoltaic energy conversi
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 9
Posted: Nov. 5, 2014
-Conceptual questions:
1. Explain why the temperature of a gas inc
Nanyang Technological University
School of Physical and Mathematical Sciences
Division of Physics and Applied Physics
PH1801 Foundations of Physics I
Problem Set No. 10
No submission required
-Answers to Conceptual Questions:
1. The absolute upper limit f