This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
WileyPlus If you purchased a new textbook in the bookstore, it came with a WileyPlus
access code (if you have an account from a previous PHYS 1050 or 1070 class, you can use the old login, if you have switched from 1020/1030, please contact me ([email protected]))
Go to https://www.wileyplus.com/WileyCDA/Section/Fundamentals-of-Physics-Extended-9th-Edition.id-402894.html and follow the instructions for login
Once logged in, you can access problems on the "assignment" tab (note: while this is called "assignment", there is no due date and no grade will be assigned, this is strictly for voluntary practice)
Problems on our "recommended problem list” are generally listed at the top, all other end-of-chapter problems follow
Under the tab "Read, Study, and Practice" you will find an electronic version of the textbook and other resources
• Channel indicator will flash. • Use response buttons A-E to set the
channel posted in the classroom.
Channel indicator
Power switch
Response buttons A - E
Setting the frequency
Wednesday, January 8, 2014
4
• Turn on the power switch. • Check that classroom frequency is set right. • Use response buttons A-E* to submit your answer. • When the process is complete, a histogram will be
displayed, and the correct answer highlighted • Questions and answers will be discussed in class.
* (If you want to change your response, just choose again while the question is open.)
Answering questions
Wednesday, January 8, 2014
5
Practice Question
Wednesday, January 8, 2014
Which of the following describes how you spent time on PHYS 1070 since the last class?
A. I registered my i>clicker online
B. I read chapter 15 up to section 4
C. I tried the problems suggested at the end of class
D. I read the introductory section of the lab manual and I’m ready for next week’s lab
E. All of the above
po
siti
on
time
+x
0
-x
velo
city
time
+v
0
-v
Mass on a spring
Wednesday, January 8, 2014 6
-1
0
1
0 1.5708 3.1416 4.7124
Sinusoidal functions
Wednesday, January 8, 2014 7
ttx cos)(
tdt
tdxsin
)(
t
dt
tdx
dt
d
dt
txdcos
)(2
2
t
-1
0
1
0 1.5708 3.1416 4.7124
t
-1
0
1
0 1.5708 3.1416 4.7124
t
Sinusoidal Functions in SHM
Wednesday, January 8, 2014 8
txtx m cos
amplitude
angular frequency
phase constant
time
position as a function of time
fT /1
Tf /22
# whole waves per s
# radians per s
)( Ttxtx What are 𝜑, 𝜔 and xm as shown in the plot, assuming a cosine function? A. 0 rad, 𝜋 rad/s, 1m B. 0 rad, 1 rad/s, 1m C. 0 rad, 1 rad/s, 2m D. 𝜋/2 rad, 0 rad/s, 1m E. 𝜋/2 rad, 1 rad/s, 2m