Computer Lab 02/28/08

1. Sign-up for e-mail updates by entering your e-mail or your parent's e-mail address in the box to the right. Follow the instructions given and then return to the blog.

2. Fill in the blanks on the worksheet by going to the Physics Classroom website's Power page.

3. Check your answers to the blanks with Mr. Boettcher.

4. a. If you went on the field trip with Mr. Billingsley:
You need to collect some data in the hallway. Go with a partner to collect two times for walking up the stairs and two times for "walking fast" up the stairs. When you come back with data you may finish your calculations.

4. b. If you DID NOT go on the field trip with Mr. Billingsley:
You must answer the Check for Understanding questions on the worksheet.

5. EVERYONE: for homework tonight you have to read pages 89 & 90 in your blue Physics text and respond to the following prompt. Complete this on the back of your worksheet from today:

You are a fitness trainer and one of you clients wonders why it matters how fast he lifts weights. He says, "you want me to start by lifting a barbell in 10 seconds, and then 9 seconds, then 8 seconds, etc. until I do it in 1 second. Why can't I just lift it at my own pace?" Explain to him why it matters how fast he lifts the weights? Use the words work, joules, seconds, power, watts, and horsepower. Write at least four sentences.

6. If you have time, try this lab. You will need someone to measure how far you move when you do a push-up, but you can easily compare to see who is more powerful.

OhmZone Online

Click here to go to the OhmZone Online.

Voltage and Current Homework

Here are a couple of leads for Internet research about voltage and current.

The Physics Classroom - remember that "electric potential" is the same as voltage.


Voltage explained

Google search of "current electricity"

Good luck

Weekly update Feb. 11-14

Next week we will continue our lessons with electric circuits. Students saw today that adding resistors in parallel will decrease resistance. We will examine the implications of this discovery and what it means for electricity in our home (it means too many items in one plug is dangerous, among other things).

It is a shortened week and I will be absent on Tuesday, the 12th. That means we will play some catch up this week as we prepare for the end of our electricity unit during the week of Feb. 19-22. Progress reports are to be given out on Thursday the 14th as students and teachers are off on the 15th.

NOTICE: A quiz retake will be given after school on Monday for the Motors/Generators quiz. Check your grade on the parent portal and study if you want to retake the quiz for a better grade.