# Physics 8-26-13 Velocity Problems 2

PHYSICS: Great job thinking through the problems today! Thanks for being so flexible there toward the end! (Thank you, Ryan!!)

Remember a few things: You weren’t born knowing how to do these – give yourself a little time. One the really good ones, just one formula won’t work – begin with writing what your know. These are some of the hardest problems we’ll work in physics – not because the formulas are hard, but because knowing how to reason through them is so challenging.

You are doing a great job! Now go work them again! I promise, it will be good for you. Remember, don’t open the solutions you wrote in your notes! Try them without it!! If you have to, peek, but then don’t stop until you can work the entire problem through without looking!

Image source http://www.sweetpreserve.com/2007/10/unusual-cars-photos.html

# Physics 8-23-13 Velocity Problems

PHYSICS – Here are the velocity problems from today, #11 and other homework and then some new problems. You did a great job on these! Do you see what I mean about learning to think through them?

Good luck on those next five problems. Make sure to do more than just show the math – be sure that I can also follow your logic in the formulas. Ditto with units, etc. Don’t give up on the tortoise and the hare. A couple of hints: remember the distance the tortoise travels is the same as the distance the hare travels plus the extra 20 cm he was ahead. Also, the time the hare raced is equal to the time of the tortoise minus those two minutes he rested.

Now go have fun! And have a great weekend!! π

flickr photo by darkmatter

# Physics 9-1-11 Acceleration, Pt. 2

PHYSICS: Hey guys, here’s the last of the acceleration formulas. Good job with the derivations! You’re doing really well with them – stay with it! Carefully examine what you know with the formulas you have that might fit. And if they don’t, examine what you do know that could lead you to what you need to know. You know? π

Tonight’s problems might be a little challenging, but you can do it!! Do you need some extra practice rearranging the formulas, or just working the problems? Help session next Tuesday morning. Somebody better text me!

# Physics 8-31-11 Acceleration

PHYSICS: Great intro to acceleration! How do you feel about the formulas you helped me to derive? Go ahead and start the homework, and we’ll finish the last formula tomorrow – yes, there’s just one more. I think you’ll come to find these are a ton better than some of the velocity problems you did. List what you are given and what you’re looking for – don’t forget things like “starts from rest” and “came to a stop.” Then, just find the formula that contains the variables you are looking for. Easy peazy! Okay, maybe not that easy! π

# Physics 8-26-11 Velocity Problems 2

PHYSICS – Velocity problems from Thursday – you’re doing a great job on these! Let me know how the take home lab is going for you. I think it will be a good break from your typical type of homework!

Good luck on those five problems. Try not to look at your notes, but if you do, work it again without your notes! And make sure to do more than just show the math – be sure that I can also follow your logic in the formulas. Ditto with units, etc. Don’t give up on the tortoise and the hare. A couple of hints: remember the distance the tortoise travels is the same as the distance the hare travels plus the extra 20 cm he was ahead. Also, the time the hare raced is equal to the time of the tortoise minus those two minutes he rested. Now go have fun! π

# Physics 8-25-11 Velocity Problems

PHYSICS: Hey guys, here’s the work we did on the homework from Tuesday night, especially number 11. π So can you work it by yourself now? Don’t just copy your notes! Soooooooo…. did we work it right in class? Come on, you can do it – and let’s crank it up a notch tomorrow!

flickr photo by darkmatter