Showing posts with label Quiz Graphs. Show all posts
Showing posts with label Quiz Graphs. Show all posts

Thursday, October 14, 2021

More Quiz Images: A Cart on a Ramp

Since Canvas often has trouble copying images from one shell to another, here is another set of images for some of my quizzes.

The following set of graphs were collected using the IoLab cart's wheel sensor, with the cart being given a push. The cart is on an inclined plane (ramp). It rolled up the ramp after being set in motion, and was allowed to roll back down the ramp.















Tuesday, April 6, 2021

Quiz Images: LR Circuit Scopes

 Here is another set of quiz images. This week's theme is resistor-inductor circuits.



This is a set of output voltage responses superimposed on the applied voltage (e.g. signal and response). The applied voltage (signal) is always shown as oriented "up": it is a square wave of 2.0 V amplitude and 2.0 V DC offset. The "response" is the voltage (vs time) across either the inductor or the resistor in the LR circuit, and the probe polarization may be the same or the opposite of the applied voltage polarization.



A couple of circuits connected in combination.


What changed to make the response to this signal change as shown above?


Here is a signal and response with some numbers around the half-life and quarter-life decay. This is an LR circuit using a ~6.8 mH inductor with a total resistance of about 200 Ω. The sampling rate means that these times are only approximate, unfortunately. I have several more images like these, with the same stipulation concerning sampling rates.



Same as previous, but with maybe a slightly better sampling rate, and the total resistance of the inductor + added resistor is now only 100Ω.

Here I replaced the pasco resistor-capacitor-inductor circuit board with and actual inductor. The nominal inductance is 63 mH, which is about an order of magnitude larger. Again, I kept the total resistance (internal for inductor + additional resistor box) to about 100 Ω. I should probably mention that for all of these, the voltage probe is looking only at the voltage drop across the added resistor. 




These two are for the same solenoid, but I have increased the total resistance (internal + added resistor) to 200Ω. I placed them here side-by side (or above and below) so that you can get a sense of the uncertainty in measurement: these are the same signal trace, I just moved the cursors to their nearest-neighbor positions.


Monday, February 1, 2021

Physics I Lab Quiz Graphs: Friction Lab

 Because Canvas has trouble displaying simple images, here is another set of figures related to one of my postlab quizzes:

Graph 1:



Graph 2:



Graph 3:




Physics I Lab Graphs: Atwood's Machine

 Because Canvas does not always display images  correctly, here is another set of graphs for one of the my online quizzes:


Graph 1:


Graph 2:




Physics I Lab Quiz Images: Some Motion-Sensor Graphs

 Because Canvas is defective and does not always correctly copy over images, here is another set of quiz graphs and images:




Friday, January 29, 2021

Physics I Lab Graphs: Simple Pendulum

 Here are some graphs for the simple pendulum lab, as always because I can't just put them in Canvas when I write a quiz.


With Data Scatter:





Upgraded version:



and


Finally, in cm.




(note, these graphs won't all produce the same value for g. That is intentional for quiz purposes).

Thursday, November 26, 2020

Some Graphs for Physical Science Lab Quizzes

 Because Canvas is faulty and continues to not correctly display images on its quizzes for all users, here is another set of graphs used in my quizzes:


Two springs, period squared vs mass


Two springs, force vs stretch.



Friday, September 11, 2020

Lab Quiz Images: An Assortment of Graphs for the Takehome Lab's Quiz

 An assortment of graphs, which can be used in the graphing analysis lab's quizzes:





Until the next set of images.



Wednesday, September 9, 2020

Physics I Lab Quiz Images: A Spring Graph

 Because Canvas is so bad at copying images from one shell to another, here is another image for one of my quizzes:


And another, somewhat related image:





Tuesday, April 7, 2020

General Physics II Quiz Images: LC Circuit Graphs

Since Canvas does not reliably transfer images or graphs from one shell to another, here is another set of images for use in my online tests or quizzes:

Version 1:


Version 2:


Version 3:


Version 4:


Version 5:


Version 6:


Version 7:


Version 8:


Version 9:


These graphs were constructed in common for an LC circuit.

Monday, April 6, 2020

General Physics II Graphs: RL Voltages

Because Canvas is defective and often does not properly copy graphs and images from one shell to another, here is another set of graphs used in one of my online tests or quizzes:

Version 1:


Version 2:


Version 3:
Version 4 (version 1 but for twice the time)


Version 5 (version 2 but twice the time)


These are voltage vs time graphs for an RL series circuit and a battery.