Wednesday, March 26, 2014
Tuesday, March 25, 2014
Chapter for homework
Hi folks,
The chapter I assigned for homework is not in the original .pdf I gave you. I thought I had given you the full book. Here's the chapter.
.
The chapter I assigned for homework is not in the original .pdf I gave you. I thought I had given you the full book. Here's the chapter.
.
3/25 physics update and homework due 4/1
Hi folks,
This week we worked on the concept of resonance. Resonance is when energy is transferred by a wave of a certain frequency causing something with a similar frequency to vibrate. It is the way energy can be transferred by waves. We did a variety of demonstrations to explore this concept.
Homework for this week, is to read the Resonance chapter in the Bite-Size Physics eBook and do the questions at the end of the chapter.
This week we worked on the concept of resonance. Resonance is when energy is transferred by a wave of a certain frequency causing something with a similar frequency to vibrate. It is the way energy can be transferred by waves. We did a variety of demonstrations to explore this concept.
Homework for this week, is to read the Resonance chapter in the Bite-Size Physics eBook and do the questions at the end of the chapter.
Tuesday, March 18, 2014
Recording of Physics Class week 24
Your video is now on YouTube.
Physics week 24
3/18 Physics update and homework for 3/25
Hi folks,
Today we spent a bit more time mastering some of the math from the past weeks. The quizzes pointed to some issues in solving the energy problems and conservation of momentum problems so we spent more time explaining them and doing some examples in class.
We also spent a bit of time finding the relationship between the tension of a slinky and the velocity of a wave.
For homework due next week do the enclosed .pdf.
Today we spent a bit more time mastering some of the math from the past weeks. The quizzes pointed to some issues in solving the energy problems and conservation of momentum problems so we spent more time explaining them and doing some examples in class.
We also spent a bit of time finding the relationship between the tension of a slinky and the velocity of a wave.
For homework due next week do the enclosed .pdf.
Physics Class is on for today
Hi folks,
From what I've heard it looks like folks can make it so we will be having class today at the usual time.
See you all soon.
Jim Mueller
From what I've heard it looks like folks can make it so we will be having class today at the usual time.
See you all soon.
Jim Mueller
Wednesday, March 12, 2014
Physics recording week 22 Waves
Your video is now on YouTube.
Physics 2013 week 22: Waves
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3/11 Physics update and homework due 3/18
Hi folks,
Today we spent quite a bit more time reviewing some energy math problems. This is fairly tough and the quizzes seemed to indicate it could use a bit more work. We also got a bit deeper into waves and actually used the formula Velocity = Wavelength x Frequency to determine the velocity of a Slinky wave.
Homework for this week is to:
Do the Think and Explain Questions on page 388 of the Conceptual Physic book #'s 1-5
Do the think and solve problems on page 399 #'s 1 - 4
Also, work through the bowling ball problem that you did for the quiz today at home. It certainly looks like many of you may want to spend a bit more time on this. Please hand these questions in next week as well. The answers are at the bottom so that you can be sure you get them right. This question will keep reappearing in different forms on the quizzes and so it is in your best interest to get this material down pat.
EXTRA CREDIT: Find a swing and figure out the frequency and period of the swing.
EXTRA CREDIT: Go to a pond or a pool and find the frequency, wavelength and velocity of some water waves you create.
A bowling ball is rested on top of one of those ramps at the 19m (62 ft) bowling lane. If the ball has a mass of 7lbs (3kg) and the top of the ramp is 1m off the ground…
a. what speed will the ball have at the bottom of the ramp?
b. if the ball is going at 3m/s by the time it hits the pins, what's the friction force of the alley?
c. what energy did the ball lose going down the alley?
d. whats the energy efficiency of the ball/alley combo?
e. if the ball comes to a rest after hitting 1 pin, what energy did that pin get?
A bowling ball is rested on top of one of those ramps at the 19m (62 ft) bowling lane. If the ball has a mass of 7lbs (3kg) and the top of the ramp is 1m off the ground…
a. what speed will the ball have at the bottom of the ramp?
4.5
b. if the ball is going at 3m/s by the time it hits the pins, what's the friction force of the alley?
.9N
c. what energy did the ball lose going down the alley?
16.5J
d. whats the energy efficiency of the ball/alley combo?
45%
e. if the ball comes to a rest after hitting 1 pin, what energy did that pin get?
13.5
Today we spent quite a bit more time reviewing some energy math problems. This is fairly tough and the quizzes seemed to indicate it could use a bit more work. We also got a bit deeper into waves and actually used the formula Velocity = Wavelength x Frequency to determine the velocity of a Slinky wave.
Homework for this week is to:
Do the Think and Explain Questions on page 388 of the Conceptual Physic book #'s 1-5
Do the think and solve problems on page 399 #'s 1 - 4
Also, work through the bowling ball problem that you did for the quiz today at home. It certainly looks like many of you may want to spend a bit more time on this. Please hand these questions in next week as well. The answers are at the bottom so that you can be sure you get them right. This question will keep reappearing in different forms on the quizzes and so it is in your best interest to get this material down pat.
EXTRA CREDIT: Find a swing and figure out the frequency and period of the swing.
EXTRA CREDIT: Go to a pond or a pool and find the frequency, wavelength and velocity of some water waves you create.
A bowling ball is rested on top of one of those ramps at the 19m (62 ft) bowling lane. If the ball has a mass of 7lbs (3kg) and the top of the ramp is 1m off the ground…
a. what speed will the ball have at the bottom of the ramp?
b. if the ball is going at 3m/s by the time it hits the pins, what's the friction force of the alley?
c. what energy did the ball lose going down the alley?
d. whats the energy efficiency of the ball/alley combo?
e. if the ball comes to a rest after hitting 1 pin, what energy did that pin get?
A bowling ball is rested on top of one of those ramps at the 19m (62 ft) bowling lane. If the ball has a mass of 7lbs (3kg) and the top of the ramp is 1m off the ground…
a. what speed will the ball have at the bottom of the ramp?
4.5
b. if the ball is going at 3m/s by the time it hits the pins, what's the friction force of the alley?
.9N
c. what energy did the ball lose going down the alley?
16.5J
d. whats the energy efficiency of the ball/alley combo?
45%
e. if the ball comes to a rest after hitting 1 pin, what energy did that pin get?
13.5
Tuesday, March 4, 2014
3-4 Physics update and homework due 3/11
Hi folks,
Today we spent time studying waves and the definitions of the properties of waves. We went outside and, with a rope, did a bit of a hands-on experience getting to understand frequency, amplitude and wavelength.
Homework for this week is to:
Read pp. 372 - 379 in the Conceptual Physics book
Do Review Questions pg. 387 #'s 1 - 11
Do Plug and Chug 1-5
Today we spent time studying waves and the definitions of the properties of waves. We went outside and, with a rope, did a bit of a hands-on experience getting to understand frequency, amplitude and wavelength.
Homework for this week is to:
Read pp. 372 - 379 in the Conceptual Physics book
Do Review Questions pg. 387 #'s 1 - 11
Do Plug and Chug 1-5
Physics class today?
Hi folks,
Just checking in on how folks feel about physics class today. It's supposed to be 33 at noon and 36 by the time class begins. Not a lot of time for melt if it's icy by you. I feel that I can make it but I'm wondering about others. Please let me know as soon as you can.
Thanks,
Science Jim
Just checking in on how folks feel about physics class today. It's supposed to be 33 at noon and 36 by the time class begins. Not a lot of time for melt if it's icy by you. I feel that I can make it but I'm wondering about others. Please let me know as soon as you can.
Thanks,
Science Jim
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