Physics quiz archive: temperature, thermal equilibrium, heat transfers

Physics 205A Quiz 7, fall semester 2019
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855
Exam code: quiz07VlnC



Sections 70854, 70855 results

0- 6 :	* [low = 3]
7-12 :	**********
13-18 :	**************
19-24 :	******************* [mean = 18.9 +/- 6.2]
25-30 :	******* [high = 30]

Physics quiz archive: temperature, thermal equilibrium, heat transfers

Physics 205A Quiz 7, fall semester 2018
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, version 1
Exam code: quiz07PeA7



Sections 70854, 70855 results

0- 6 :	** [low = 6]
7-12 :	****
13-18 :	***********
19-24 :	********************** [mean = 20.8 +/- 6.0]
25-30 :	************ [high = 30]

Physics quiz archive: temperature, thermal equilibrium, heat transfers

Physics 205A Quiz 7, fall semester 2017
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, version 1
Exam code: quiz07Whu7


Sections 70854, 70855 results

0- 6 :
7-12 :	******* [low = 9]
13-18 :	*************
19-24 :	******************* [mean = 18.9 +/- 5.4]
25-30 :	*** [high = 27]

Physics quiz archive: temperature, thermal equilibrium, heat transfer

Physics 205A Quiz 7, fall semester 2016
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, 73320, version 1
Exam code: quiz07p4sT



Sections 70854, 70855, 73320 results

0- 6 :	* [low = 6]
7-12 :	*************
13-18 :	***************
19-24 :	*************** [mean = 18.5 +/- 6.6]
25-30 :	******** [high = 30]

Physics quiz archive: temperature, thermal equilibrium, heat transfer

Physics 205A Quiz 7, fall semester 2015
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, 73320, version 1
Exam code: quiz07zSOL



Sections 70854, 70855, 73320 results

0- 6 :	* [low = 3]
7-12 :	*****
13-18 :	*****************
19-24 :	****************************** [mean = 21.2 +/- 5.6]
25-30 :	**************** [high = 30]

Physics quiz archive: temperature, thermal equilibrium, heat transfer

Physics 205A Quiz 7, fall semester 2014
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, 73320, version 1
Exam code: quiz07cO4t



Sections 70854, 70855, 73320 results

0- 6 :
7-12 :	**** [low = 9]
13-18 :	*******
19-24 :	******************** [mean = 24.2 +/- 5.5]
25-30 :	********************** [high = 30]

Physics quiz archive: temperature, thermal equilibrium, heat transfer

Physics 205A Quiz 7, fall semester 2013
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, 73320, version 1
Exam code: quiz07b0o7



Sections 70854, 70855, 73320 results

0- 6 :	** [low = 6]
7-12 :	****
13-18 :	****************************** [mean = 18.5 +/- 4.8]
19-24 :	********************
25-30 :	*** [high = 30]

Astronomy in-class activity: star sizes

Astronomy 210 In-class activity 16 v.13.06.10, fall semester 2013
Cuesta College, San Luis Obispo, CA

Students find their assigned groups of three to four students, and work cooperatively on an in-class activity worksheet on applying Wien's law and the Stefan-Boltzmann law to determine the relative sizes of select pairs of stars.

(For the purposes of this in-class activity, the proportionality constant in the Stefan-Boltzmann law is omitted, as only relative rather than absolute values of star luminosities, temperatures, and sizes are compared.)

Physics quiz archive: temperature, thermal equilibrium, heat transfer

Physics 205A Quiz 7, fall semester 2012
Cuesta College, San Luis Obispo, CA
Sections 70854, 70855, version 1
Exam code: quiz07Di5k



Sections 70854, 70855 results

0- 6 :	***** [low = 3]
7-12 :	************
13-18 :	********************** [mean = 15.2 +/- 5.4]
19-24 :	*********** [high = 24]
25-30 :

Astronomy midterm handout: atmosphere transparency, H-R diagram

Astronomy 210 Midterm 2 cover sheet v.08.07.10, fall semester 2012
Cuesta College, San Luis Obispo, CA

Diagrams showing the transparency of Earth's atmosphere to different electromagnetic radiation wavelengths, and a Hertzsprung-Russell diagram of star luminosities/absolute visual magnitudes versus surface temperature/spectral types, and showing relative sizes compared to the sun.

Space Shuttle thermal protection system tile

Hey, it's Space Shuttle tile time!

After heating a Space Shuttle thermal protection system tile (that is, increasing its thermal energy), it will have an immense amount of internal thermal energy, but is safe to touch (by the edges and corners). What's up with that? (We also get to play hot potato in class by heating up a Space Shuttle tile sample with a blowtorch, and then pass it around. Good times.) (Video link: "Space Shuttle Thermal Tile Demonstration.")

Physics quiz archive: temperature, thermal equilibrium, heat transfer

Physics 205A Quiz 7, fall semester 2011
Cuesta College, San Luis Obispo, CA

Sections 70854, 70855, version 1
Exam code: quiz07n0N3
Sections 70854, 70855 results
Quiz 7 results (max score = 30):

0- 6 :	* [low = 6]
7-12 :	********
13-18 :	*******************
19-24 :	*************** [mean = 19.2 +/- 5.7]
25-30 :	********* [high = 30]

Found physics: frozen treat arcade crane

20101223796
http://www.flickr.com/photos/waiferx/5384723889/
Originally uploaded by Waifer X

20101223797
http://www.flickr.com/photos/waiferx/5384724079/
Originally uploaded by Waifer X

Frozen desert crane, Fun Factory arcade, Pearlridge Shopping Center, 'Aiea, HI. Photo by Cuesta College Physical Sciences Division instructor Dr. Patrick M. Len.

Found physics: thermal volume expansion

20090621165
http://www.flickr.com/photos/waiferx/3656904465/
Originally uploaded by Waifer X

Volume expansion disclaimer, Costco fuel pump, San Luis Obispo, CA. Photo by Cuesta College Physical Sciences Division instructor Dr. Patrick M. Len.

Astronomy quiz question: blue main sequence star vs. blue supergiant

Astronomy 210 Quiz 4, Fall Semester 2008
Cuesta College, San Luis Obispo, CA

[4.0 points.] A blue main sequence star is known to be smaller than a blue supergiant because it is:
(A) same temperature as, but more luminous than a blue supergiant.
(B) same temperature as, but less luminous than a blue supergiant.
(C) same luminosity as, but hotter than a blue supergiant.
(D) same luminosity as, but cooler than a blue supergiant.

Section 70158
(A) : 9 students
(B) : 50 students
(C) : 8 students
(D) : 2 students

Correct answer: (B)

From Wien's law, the main sequence star and the supergiant must have the same temperature, because they have the same color. From the Stefan-Boltzmann law, for two stars of the same temperature, the less luminous star must be smaller in size.

"Difficulty level": 75%
Discrimination index (Aubrecht & Aubrecht, 1983): 0.38

Astronomy quiz question: red supergiant vs. red giant

Astronomy 210 Quiz 4, Fall Semester 2008
Cuesta College, San Luis Obispo, CA

[4.0 points.] A red supergiant is known to be larger in size than a red giant because it is:
(A) same temperature as, but more luminous than a red giant.
(B) same temperature as, but less luminous than a red giant.
(C) same luminosity as, but hotter than a red giant.
(D) same luminosity as, but cooler than a red giant.

Section 70160
(A) : 29 students
(B) : 0 students
(C) : 1 student
(D) : 1 student

Correct answer: (A)

From Wien's law, the supergiant and the giant must be the same temperature, because they have the same color. From the Stefan-Boltzmann law, for two stars of the same temperature, the more luminous star must be larger in size.

"Difficulty level": 93%
Discrimination index (Aubrecht & Aubrecht, 1983): 0.25