Physics for the Inquiring Mind [Phys 105]                Fall 2003
Activities and Homework for Thursday, August 28.


[1] We will be going up to the Lab [Room 225] today to do our experimentation.  You will be working in the following groups:

Red Group:  Anello, Deery, Stancick, Wruble
Yellow Group:  Filosa, MacHose, Stilwell, Woolf
Blue Group:  Doell, Mazzuca, Scimeca, Werkheiser
Mauve Group: Baltz, Dury, Finno, Noel
Chartreuse Group:  Cutter, Frantz, Giranda, Michaels
Green Group:  Gardowski, Hake, Hardy, Medei

When you get up to the lab, group off together and sit near one of the six hot plates in the room.  After this, introduce yourself to the other group members, and get contact information (phone and/or email) from all of them.  You will be working closely with them over the next 3 weeks or so, and will need to be able to contact them outside of class.

[2] Send one of your group members to John to retrieve the following items: 1 150 ml beaker, 1 graduated cylinder, 1 timer, 1 thermometer, graph paper.

[3] Start Experiment 1.2 on p. 164 of your text, but note the following changes:
    
   Use 60 mls, not 75 mls of water.  This will make things go a bit quicker.
You need take readings only once per minute, instead of the recommended once every 30 seconds.

[4] While your water is heating for Experiment 1.2, read p. 163 of your text and do Experiment 1.1 on p. 163 (but continue to take data for Experiment 1.2!).
    
[5] Read the remainder of p. 164 and all of p. 165.  Do part C of Exercise 1.3 on p. 165 in class.  You will be asked to do the rest of the exercise for homework (to be turned in on Friday, August 29). To compare your thermometer to another, either borrow an additional one from John, or borrow one from another group.

[6] Finish Experiment 1.2 and make the graph.

[7] After you have finished Experiment 1.2, turn in all of your group's written work from Experiments 1.1 and 1.2.





[8] Homework for Friday, August 29:  

If you have not already done so, make sure that your group writes up and turns in all class work done today by Friday.  The names of all group members should be on it (I need only 1 copy per group).
Do parts A and B of Exercise 1.3 on p. 165.  These should be handed in INDIVIDUALLY (that is, I need 1 copy per person).
Similarly, do Exercise 1.6 on p. 167.
With your other group members, come up with a procedure to:

Determine the final temperature of the resulting mixture when 50 grams of room temperature water is mixed with A grams of water at B degrees Celsius.

Here, the quantities A and B are determined by your group membership as follows:


Group
A
B
Red
50
60
Yellow
100
60
Blue
150
60
Mauve
50
40
Chartreuse
100
40
Green
150
40

You submission needs to include a list of needed equipment, followed by a step by step procedure for determining the temperature asked for.  You are free to submit sample procedures and/or equipment requests to me via email at John.Elwood@po-box.esu.edu, but you must come to class on Friday with one procedure for your entire group, and should be ready to implement it.  I will have any equipment that you request ready for you!