March 19th Class

Today in class we finally got our Super Heroes back!!!! Some of us posted pictures of our Super Heroes on the bulletin board right outside the Science classroom.

After doing that we went over the Work & Power Math 2 Problems we had for homework.

Some of the questions we did were.....

Question 2.

If 562.3 J of work are used to move a smart car 15.1m, what is the amount of force applied to that smart car?

Formula: W=Fd or F= W/d

Plug: F= 562.3 J/15.1 m

Chug: F= 37.24N

While going over our homework, we also did a quick review on our units and formulas for our quiz on Tuesday.

Here are the units and formulas for Work and Power!

Work = Force x Distance

Power = Work/Time

Work = J (joule)

Force = N (Newton)

Distance = m (meter)

Time = s (second)

Power = W (Watts)

After doing that we went to the computer lab to test another Gizmo. This time was also about inclined planes, however it was harder from what we did last time. We were changing the angle of the inclined plane and the weight of the object falling down the inclined plane to find more about the inclined plane.

So this is what we did in class on Friday. And.........

DON'T FORGET TO STUDY FOR THE QUIZ!!!!!

Study Textbook 108-118, 124-133, also practice solving the worksheet.

If you have questions you should ask Ms.D on Monday.

Be sure to bring your CALCULATOR on the Tuesday.

The next person to scribe is...................

GIO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Science Class Tuesday 16th

Hello Seventh Grade!!!

On Tuesday Ms. D reminded us that we only have three weeks left for blogging, so everyone has to make sure they are ontop of their comments. All blog entries must be completed by April 1st at 4 p.m. Don't forget that you have to post two comments on the seventh grade blog, one on the eight grade blog, and one on the Canadian blog!

Next, we had a couple minutes to prepare for our presentations on the six simple machines! We went through every machine exept for the pulley. During the presentations, the students that were watching had to take notes!!!

After the presentations, Ms. D let us know that there is quiz coming! The quiz is going to be on work, power and simple machines, so don't forget to study and brush up on your formulas!

Toward the end of the class, we got our homework assignment, which is random science question number eight. We have to find out who invented the zipper, and write the answer in our lab notebook!

Bellow you can find a video about simple machines. Instead of width the creator of the movie calls it "thickness". I hope it helps you understand the simple machines!

http://www.youtube.com/watch?v=ca1h6f2hcz8&feature=related

HaVe A gReAt St. PaTrIcK's DaY!!!

Thursday,March 4th,2010

Today in class we started simple machines, work and power! Yey a new unit!

We took notes on google docs. here are the links:

http://docs.google.com/Doc?docid=0AVp9yP1m8dXjZGdtcDdiNzhfNGRxZG1nOGNt&hl=en&pli=1 By Viktor

https://docs.google.com/Doc?docid=0ASuy_6wKQThjZGY2eDg3Y3FfMWc3ZDN4OGd4&hl=en By Noam

https://docs.google.com/Doc?docid=0AQB2bJ97_6fzZGM0dnM2emZfMGRkOTN2Y2N0&hl=en By Julia

Julia,Viktor, and Noam were our laptop-note takers for the day.

We learned the formulas and simple definitions of these things.

The formula for work is W=Fd be sure to make the W capital because the lower case one s for weight.

For homework we had a worksheet with work & power math problems.

For example one problem looked like this: How much work is done to move a box if the force applied to that box is 65.7 N and it is moved a distance of 12.1 m?

Formula=W=Fd

Plug=65.7N x 12.1 m

Chug=794.97J

Homework for tomorrow is to finish math problems sheet.

THE NEXT SCRIBE ISS IVA!!!!!