PHYS1002: PHYSICS 1 (FUNDAMENTALS) OUTCOMES
COURSE AIMS:
Introduce language and methods of physics while presenting physical concept associated with the study of
mechanics and waves
Two different qu
LookingDeeper
Buzzsession:
Howcanweexplainbuoyantforce?
Whathappenstoanobjectwhenyouimmerseit?
Pressure
Duetopressurefromsurroundingfluid,aforce
actsinwardsfromALLdirectionsontheobject.
force
force
Buoyancy force ONLY
depends on the
SUBMERGED volume.
ArchimedesPrinciple
Whenanobjectisimmersedina
fluid,thereisanupwardbuoyant
forceequaltotheweightofthe
volumeoffluiddisplacedbythe
object.
Thisapp
Case Study #2: Falling Down
Look at any of the Sky TV or similar
dishes in pubs, clubs and backyards.
They are supposedly aimed at geostationary
communication satellites in the sky.
But what keeps t
Homework Set 10: Solutions
Due: Wednesday, December 5, 2012
Chapter 13: Questions
(10) 8 points
A at, uniform cylinder of lead oats in mercury at 0 C. Will the lead oat higher or lower
when the temper
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Viscosity and Laminar Flow;
Poiseuille's Law
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Abstra
Physical Constants
Physical constants
symbol
name
c
speed of light in a vacuum
G
gravitational constant
h
planck's constant
h/2
reduced planck's constant
dirac's constant
0
electric constant
permitivi
MarineSedimentProxyRecords
WhyStudyOceanWaterTemperature?
Theoceanscoverover70%oftheEarths
surface and influence climate on a global
scale. Heat exchange between the oceans
surfaceandtheatmosphereiscr
Chapter 6 Rotation and Angular Momentum
Chapter 6 Rotation and Angular Momentum
6-1 What Is Physics?
6-2 Equilibrium
6-3 The Rotational Variables
6-4 Are Angular Quantities Vectors?
6-5 Relating the L
Chapter 5 Center of Mass and Linear
Momentum
Source: NASA/JPL-CalTech
Chapter 5 Center of Mass and Linear
Momentum
5-1 What Is Physics?
5-2 The Center of Mass
5-3 Newton's Second Law for a System of P
1. :
2.
3.
4.
z
P ( x, y , z )
O
X
z
P ( r , ,)
r
O
X
z r cos
r sin
Y
y
x
Y
z
k
1.
r xi yj zk
2 2 2
r | r | x y z
x
y
z
cos , cos , cos
r
r
r
P ( x, y , z )
i
O
r
X
2.
x x(t ), y y (t ), z z (
Howcanasteelboatfloat?
2minuteBuzzSession
Drawupalistofthingswhichfloat.
Drawupanotherlistofthingswhichsink.
Ifquestionsarise,writethemdowntoo.
Part of the purpose of this exercise is to bring out
Physics1Fundamental
PRS, QUIZZ and video
PRS, QUIZZ and video
Q2. Now that you know the weight of the container with
the steel marble is the largest, while the others are equal
in weight.
Which of the
Torque problem: Penguin mobile
A toy "mobile" of penguins hangs motionless. Each cross-bar is horizontal, of negligible
mass & extended 3 times as far to the right of the supporting wire as to the lef
Rockslide
During a rockslide, a 520kg rock slides from rest down a hillside 500m long and 300m
high. Coefcient of kinetic friction between the rock and the hill surface is 0.25.
(a) If the gravitation
Colliding balls
from 1996 exam
A ball of mass 700g is fastened to a cord 800mm long and xed at the far end at a support, and
is released when the cord is horizontal. At the bottom of its path, the bal
Loop-the-loop
What height does the ball have to start at to make it through the loop?
Let point 1 be where the
1
ball starts, at height x, and
point 2 be at the top of the
loop, at height 2r where r i
Ball changing direction
KJF problem 10.11
A 20 g plastic ball is moving to the left at 30 m/s. How much work must be done
on the ball to cause it to move to the right at 30 m/s?
Solution: Consider the
Dragging a crate
A worker drags a crate across a factory oor by pulling on a rope tied to the crate. The
worker exerts a force of 450N on the rope, which is inclined at 38 to the horizontal, and
the o
Box on a slope
A box is held in position by a cable along a smooth slope, as shown. If =60 and m=50
kg, nd the tension in the cable and the normal force exerted by the slope.
Solution: Draw the free-b
Overtaking a truck
(Example 10.17)
Your 1500 kg car is behind a truck travelling at 90 km h1 (= 25 m s1). To pass it,
you speed up to 120 km h1 (33 m s1) in 6.0 s.
What engine power is required to do
Hitting a cricket ball
A 150g cricket ball is bowled with a speed of 20 ms1. The batsman hits it straight back to
the bowler at 40 ms1, and the impulsive force of bat on ball has the shape as shown.
(
Tipping box
(2009 exam)
A box, 2.0m tall and 0.5m by 0.5m wide is resting on a at
horizontal surface. The box is pushed by a horizontal
force of magnitude F at a height h above the ground in an
attemp
Chapter3 force
3-1 What Is Physics?
3-2 Newtonian Mechanics
3-3 Newton's First Law
3-4 Force
3-5 Mass
3-6 Newton's Second Law
3-7 Newton's Third Law
3-8 Applying Newton's Laws
3-9 Some Particular Forc