Physics 1A: Mechanics
Winter 2016
Discussion: Week 1
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Let us begin with a few puzzles t
Physics 1A: Mechanics
Winter 2016
Discussion: Week 3
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
a) We are considering a
Physics 1A: Mechanics
Winter 2016
Discussion: Week 2
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
a) A body travels in a
Physics 1A: Mechanics
Winter 2016
Discussion: Week 4
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
Mass M1 slides on top o
Physics 1A: Mechanics
Winter 2016
Notes on Motion in a Straight Line
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
WHERE DO ALL THES
Physics 1A: Mechanics
Winter 2016
Discussion: Week 3
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
Let us attempt to deriv
Physics 1A: Mechanics
Winter 2016
Discussion: Week 2
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
a) A body travels in a
Physics 1A
Spring 2015
Midterm Exam 1
April 27, 2015
4:00 PM - 4:50 PM
PAB 1-425
READ THIS BEFORE YOU BEGIN
You are allowed to use only yourself and a writing instrument on the exam.
Print your name on the top right of your exam.
If you finish more tha
Physics 1A
Spring 2015
Challenge Problem 1
The Law of Cosines states that for any triangle with sides of length A,
B, and C, the angle subtended by sides A and B satisfies
C 2 = A2 + B 2 2AB cos .
Prove this law using vector methods (e.g. perhaps things l
Physics 1A — Spring 2016
LECTURE 1
MIDTERM EXAM #1
Rules and Advice
Multiple Choice Questions. For each of the multiple choice questions that
follow, write the letter of the correct answer. If your answer is correct, you will
receive 5 points, regardless
Physics 1A — Spring 2016
LECTURE 1
MIDTERM EXAM #2
Guidelines / Advice
On multiple choice and true/ false questions, the correct answer is worth 1 point,
and your reasoning is worth 4 points for a total of 5 points.
On true/ false questions, if you sele
flanguo Wang
Physics 1A Fall 2015 Sample Final Name: Student ID#:
Important
Goo
.
Note 1:
this sample include only materials in Chapter 9, 10, 11, 13 and part of chapter 8.
For materials in chapter 1 through and part f chapter 8, you should review the
Physics 1A Fall 2015 Sample Final Name: Student ID#:
Important
Note 1:
this sample include only materials in Chapter 9, 10, 11, 13 and part of chapter 8.
For materials in chapter 1 through and part f chapter 8, you should review the two sample
midterms
Physics 1A Fall 2015 Sample Midterm 2 Name: Student ID#:
1) Is it possible for a system to have negative potential energy?
A) Yes, as long as the kinetic energy is positive.
B) Yes, as long as the total energy is positive.
C) Yes, since the choice of t
Physics 1B Practice Midterm 2 Solutions
(1) The work W done by the gas during the cycle is determined by the are of the P V diagram bounded
by the cycle, i.e. the area of the trapezoid (see figure below). Note that the diagram is only schematic
as we dont
Physics 1B Midterm 1 Solutions
(1) The density of ice at the freezing point is less than that the density of the water at the same
point. This is counterintuitive as most materials become denser upon solidification. Assume that the
density of ice is given
Physics 1B Midterm 2 Solutions
(1) Suppose that n moles of an ideal monatomic gas perform a cycle shown in figure. The order of
the steps is 1-2-3-4-1. Determine the work and heat exchange in this cycle, in terms of P0 , P1 , P3 and
V1 , V2 . (Pi , Vi are
Physics 1A: Mechanics
Winter 2016
1st Midterm Review
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
This is an original Cor
Physics 1A: Mechanics
Winter 2016
Discussion: Week 4
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
Mass M1 slides on top o
Physics 1A: Mechanics
Winter 2016
Discussion: Week 3
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
a) We are considering a
Physics 1A: Mechanics
Winter 2016
Discussion: Week 2
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
a) A body travels in a
Physics 1A: Mechanics
Winter 2016
Discussion: Week 4
Agnieszka Wergieluk
Graduate TA
awergieluk@ucla.edu
Office hours: Mondays, Tuesdays, Wednesdays 4-7 p.m. by appointment!
(Alternatively, just e-mail me your questions.)
Problem 1
Mass M1 slides on top o
Problem Set 1 - Solutions
Challenge Problems
CP1.
The Law of Cosines states that for any triangle with sides of length A, B, and C, the
angle subtended by sides A and B satisfies
C 2 = A2 + B 2 2AB cos .
Prove this law using vector methods (e.g. perhaps t
m
Mass density of the string
Ltotal
m
L
m
L
2
2
2
2
1
m
m 2 L Uncertainty in mass density
L
L
NOTE: The uncertainty in the measurements of our ruler was estimated to be 0.001m.
DATA ANALYSIS
Analysis:
As shown in the table above, the impulse
period of oscillation and amplitude ratios will be found for each of the two types of motion. By
completing this experiment, students should strengthen their understanding of undamped and
damped harmonic motion.
Key Equations Used:
Part A: Derivations
Sim