Q1: Week 6 – Archive
Week of 10/6 – 10/10
10/6 – Monday – period 7 – RAT 10 – lecture 1.10
period 8 – Lab 3 continued…
Todays demos:
HW:
1: Watch lecture 1.11 – identifying exothermic, endothermic processes, heat flow, temperature intro
2. Complete energy introduction ditto 1.pdf and omit question 4 and 5 (not the temperature side) worksheet.
3. Review with Key
Lecture 1.11
10/7 – Tuesday – period 7-
1: Reviewed Homework
2: RAT 11 – lecture 1.111
HW:
1: Please watch Lecture 1.12 – Temperature
2: Complete the worksheet.
RAT 12 – Tomorrow – Review todays RAT with key in Power School link.
Lecture 1.12 – Temperature
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10/8 – Wednesday – period 7-
1: RAT 12 –
2: Demo’s
period 8 –
Todays Demos:
I may not get to grade Todays RAT until later tonight, sorry. I will post the key in powerschool.
HW:
1. Please watch how to measure energy Lecture 1.13
2. Complete selected problems from worksheet.
3. REview those selected problems with key
Lecture 1.13: Measuring Temperature
10/9 – Thursday – period 7-
1: Review RAT 12 –
2: Whiteboard Energy Problems Q/A
I have posted a new worksheet that takes out the calorie with a new key. It was last night’s worksheet that I changed. You may want to review some of these.
HW:
1: Complete review worksheet
2: Please place answers into Form Below.
3: I will email your grades back to you.
4: Study For CAT 3 –
What are the concepts behind every question in your RATS?
| Rat 10 |
Readiness Assessment Test 10 – Lecture 1.10.pdf
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Readiness Assessment Test 10 – Lecture 1.10 KEY.pdf
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| Rat 11 |
Readiness Assessment Test 11 – Lecture 1.11.pdf
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Readiness Assessment Test 11 – Lecture 1.11 key.pdf
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| Rat 12 |
Readiness Assessment Test 12 – Lecture 1.12.pdf
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Readiness Assessment Test 12 – Lecture 1.12 KEY.pdf
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When you are done with the HW and Form. Please email me and I will send you the key.
10/10 – Friday – period 7- Energy transfer activity – Hot metal Metal blocks into cold water
period 8 – Activity
HW: Study for CAT 3 on Tuesday 10/14
I will post a lecture going over all math related problems and selected problems from thursday’s night HW.
I will take all requests to make any lecture on any problems from the CAT 3 review worksheet or anything we did this week. The CAT 3 will look like the review sheet.
I am posting the written key below (although I gave everyone a copy in class):
Review Your RATS from this week!
| Rat 10 |
Readiness Assessment Test 10 – Lecture 1.10.pdf
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Readiness Assessment Test 10 – Lecture 1.10 KEY.pdf
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| Rat 11 |
Readiness Assessment Test 11 – Lecture 1.11.pdf
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Readiness Assessment Test 11 – Lecture 1.11 key.pdf
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| Rat 12 |
Readiness Assessment Test 12 – Lecture 1.12.pdf
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Readiness Assessment Test 12 – Lecture 1.12 KEY.pdf
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Friday’s White Board Metal Block in Hot Water Activity –
This was well done by all! What we should of learned from this activity is the following:
(I am adding 5 points to everyone who participated on their highest RAT of the week.)
1: Energy released must always be equal to energy absorbed (Heat flows from Hot to cold).
This is the law of conservation of energy. In the system, block, cup, and water there was no destruction or creation of energy, just a transfer.
2. Each thermal equation (q=mCT) is made up of one substance.
This means that you cannot use the mass of the water with the specific heat of a metal. The entire equation must use the same substance throughout! I caught several students trying to use the change of temperature for the metal block for the water.
3. Every different substance has a unique specific heat.
Do not always think that we will use water which has its specific heat posted in Table B in your reference tables. If another substance is used you will need its specific heat.
4. The metal had a larger change of temperature because it had a lower specific heat.
Having a lower specific heat means that it takes less energy to increase a gram of the substance 1 degree Celsius. Water has a higher specific heat, thus it takes more heat or energy to increase or decrease its temperature. You know this!! Its takes a long time for the water in our ocean to warm up in the summer and it takes a long time for the water to cool off in the winter.
5. Lastly your calculated change of temperature should be higher than your experimental result because of the loss of heat from the block or hot water. We assume that the energy releases will all flow to the water but some of it will not get to the water and escape as heat in the air.
AS per a few students who requested this I have made a review video of last THursdays CAT 3 review questions (27 – 32) all of the joule math problems.