PHY2020-001
Lecture 10 (02/12)
Instructor : Gauri R. Pradhan
Recall
Summary so far
Matter is made of atoms
Atoms are made of positively charged
protons, electrically neutral neutrons and
negatively ch
PHY2020-001
Lecture 11 (02/17)
Instructor : Gauri R. Pradhan
Recall
Density
Amount of mass per unit volume of a
material.
Density = Mass/Volume
Unit of density is kg/m3
Example:
Density of water is
PHY2020-001
Lecture 17 (03/19)
Instructor : Gauri R. Pradhan
Electricity: what is it about?
It is a name given to a wide range of
phenomena:
Lightning in the sky, a spark when we strike
a match or wh
PHY2020-001
Lecture 16 (03/17)
Instructor : Gauri R. Pradhan
Recall
Summary of equations
wave speed = frequency x wavelength
frequency = 1/period
period = 1/frequency
wave speed = wavelength/period
Qu
PHY2020-001
Lecture 7 (01/29)
More about Gravitation and Review I
Understanding motion
Instructor : Gauri R. Pradhan
Recall
Keplers laws
Keplers First Law
All
planets move in elliptical orbits with t
PHY2020-001
Lecture 4 (01/20)
Instructor : Gauri R. Pradhan
Recall
Summary of equations
distance
speed =
time
total distance covered
average speed =
time interval
change in velocity
acceleration =
tim
PHY2020-001
Lecture 9 (02/10)
Instructor : Gauri R. Pradhan
Recall
2
Characteristics of atoms
Incredibly tiny
Numerous
Perpetually in motion
Ageless
Fundamental facts about atoms
1. Every atom is comp
PHY2020-001
Lecture 5 (01/22)
Instructor : Gauri R. Pradhan
Last time.
net force
acceleration =
mass
Weight=mg
F=ma
Impulse = Ft = (mv)
Law of conservation of momentum
(net mv)before = (net mv)after
C
PHY2020-001
Lecture 6 (01/27)
Instructor : Gauri R. Pradhan
Recall
Last couple of classes
We
learnt work, kinetic energy, and potential energy
W = Force x displacement
Gravitational potential energy
PHY2020-001
Lecture 3 (01/15)
Instructor : Gauri R. Pradhan
Recall
Newtons first law of motion (the law
of inertia)
A restatement of Galileos concept of
inertia : states that every object
continues in
PHY2020-001
Lecture 2 (01/13)
Instructor : Gauri R. Pradhan
Recall
Paul G. Hewitt
Conceptual Physics, 12th edition
This is your required course
material
You will need this material
and lecture notes f
PHY2020-001
Instructor : Gauri R. Pradhan
Paul G. Hewitt
Conceptual Physics, 12th edition
This is your required course
material
You will need this material
and lecture notes for:
- in-semester tests
Experiment 6: Newtons Second Law
Date: Oct/14/16
Abstract:
In this experiment, Newtons Second Law is tested via a glider cart that accelerates with a
known falling weight and has an acceleration that
Experiment 10: Torque
Date: November 13th 16
Abstract: Force that is applied to a rigid object such as a lever arm, a bar or pole, and it results in the
object rotating about an axis or pivot torque h
Experiment 9: Moment of Inertia
Author: Vee Madhu
Partner: Austin Scot
Date: November,5,16
Abstract: As Bill Nye the Science Guy once said inertia is the property of mater. Inertia is
indeed is a prop
Lab 6: Newtons Second Law and Acceleration
Author: Vee Madhu
Partners: Austin Scott
Date: Oct/14/16
Abstract: In this lab, we observe how the resulting acceleration for several forces apply to the
car
EMO': O
III In Figure P2015, charge (12 experiences n0 ne elect
What is (1. ?
1 I -2.0 nC 12
o 0 e
10cm 10cm
From @ owl @ we wk. E_+F2\ ha. 3 0
W Fm xs 4kg, :47 fang UmL 3,7, "12223",
FL. 9 Nu cfw_m m
1. A point charge of 1C is located at the origin of a coordinated system.
a. At what distance from the origin is the electric field equal to 600N/C?
b. If two additional charges of -2C and 2C are loca
PHY2054.803F16M2P1
Practice problems
1. One metallic electrically isolated sphere (#1) has a net charge of 2C and diameter of 1mm made
to contact a second identical sphere (#2) and then removed to a d
ection 21.1 Electric Potential Energy and Electric Potential
ection 21.2 Sources of Electric Potential
1. III Moving a charge from point A, where the potential is 300 V,
to point B, where the potentia
Problem 14.42
Your car rides on springs, so it will have a natural frequency of
oscillation. The figure below shows data for the amplitude of
motion of a car driven at different frequencies. The car i
Problem 12. 8
An ideal gas at 0C consists of 1.01023 atoms. 10 J of thermal
energy are added to the gas. What is the new temperature in
C?
Prepare
= 273
= 1.0 1023
= 10
Conservation of energy
=
Problem 11.13 Do you even lift?
A weightlifter curls a 30 kg bar, raising it each time a distance of
0.60 m. How many times must he repeat this exercise to burn
off the energy in one slice of pizza?
0
Pre-class Problem
A package is oscillating on a spring scale with a period of 4.60 s.
At time t = 0.00 s the package has zero speed and is at x = 8.30
cm. At what time after t = 0.00 s will the packag
PHY 2054
MW 6:30p-7:45p
Spring 2015
Example Questions for Exam #2
Note: These problems are provided as an example of the types of questions I might ask and the
level of understanding that I expect. Th
PHY 2053 Think Tank 1
Name:
Please circle your answer. Simplify your answers.
Scale Diagrams:
1. Pat, running madly to get to class on time, runs 25 m due south through the Tech
Building, then turns a
PHY 1053 Think Tank 4
Name:
PROS LEM i
A wheel with rotational inertia I is mounted on a shaft. The wheel rotates around the shaft with angular
speed goo r (The shaft’s rotational inertia is negligibl
PHY 1053 Think Tank 5
Here are the equations for this section:
ToC = 5/9 (TOP — 32) ToK = ToC + 273.
AQ = chT AQ/At =kAAT/Ax
050/ At) =eoA(T 4 - Tm“) (Netheatﬂow)
net obj
AQ/ A, = (1000 W/mz) e A (hea