Tag Archives: kinetic energy

Physics 12-1-11 Work-Energy Problems

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PHYSICS – Happy first day of December! Great work on the problems today! I think it was a good idea for us to regroup and make sure you had the work-energy theorem down before we move on to the last part of the chapter tomorrow. Are you still trying to follow formulas, or are you starting to be able to think through the problems and and begin to make connections?

Be careful – don’t just start grabbing formulas and throwing in numbers. Make sure the formulas make sense – ask yourself every time why it makes sense for you to put that particular number in that particular part of the formula. And work them over and over and over until it comes naturally to you!

This means that the homework for tonight is changed. You have one final review worksheet that will be due next Tuesday. I scanned and linked a copy for you here – it’s two pages. Start with the questions and problems that are circled – I may add more to the list later. Chapter 5 Review Worksheet 2


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Physics 11-29-11 Chapter 5 Review Worksheet Problems

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PHYSICS – Hey guys, it was good to get back to exercising the old gray matter today! Here are some of the problems from the first chapter 5 review worksheet: 3, 4, 5, 2, and 10. Watch out for 2 and 10! You did a great job on them with me in class, but make double sure you can work them also by yourself. That’s homework tonight, re-work by yourself the ones you didn’t get before. And then do it again til you make sure you have it! :)

I’ve never seen Old Faithful in person, have you? So we calculated the velocity of the water coming from the bottom – reckon how much power that would be? Power? Let’s talk about that tomorrow!



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Physics 11-18-11 Law of Conservation of Energy

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PHYSICS: So why is the first hill of a roller coaster always the highest? Here’s the lecture from Monday on the conservation of energy. Great job on the concepts and problems today – let’s put it to practice next week, and even this weekend on that take-home lab. Hey, if you were to design a roller coaster, what would it look like?!? :)


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Physics 11-22-10 Law of Conservation of Energy

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PHYSICS: So why is the first hill of a roller coaster always the highest? Here’s the lecture from Monday on the conservation of energy. Great job on the concepts and problems today – let’s put it to practice tomorrow. If you were to design a roller coaster, what would it look like?!? :)


flickr photo by thecrypt

Hon Chemistry 8-25-10 Energy, Pt. 2

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HON CHEMISTRY – Happy Wednesday! Great job on the lab safety projects! I’ve read the books and I can’t wait to see the rest of the videos. Here’s the short lecture on potential and kinetic energy. Now that we’ve reviewed terminology, we’ll start classifying matter tomorrow. Hey, speaking of soon in the future – have you memorized the symbols of the elements? And don’t forget atomic numbers and masses for numbers 1 – 30. :) BTW – Can you follow the conservation of energy in bungee jumping?


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Physics 11-13-09 Conservation of Energy Problems Review – 2

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PHYSICS: Here’s one last review of the conservation of energy and work-energy theorem problems. We did the Tarzan problem and a few sliding up and down inclines (the problems, I mean, not us!) – #40, 41, 46, 48, I think. Good job on them! We’ll do power on Monday. Have a great weekend!


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