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S4 - answers to HW on Newton’s 1st and 2nd laws December 12, 2007

Posted by mrmackenzie in : Transport , add a comment

The answers to the homework you handed in today are attached as a pdf file.  I’ve written some explanations along the way to help you see where the answers are coming from.  Ask me if there is anything you’re not sure about.

HW on Newton I & II

Int 2 physics defeats a wiley coyote October 30, 2007

Posted by mrmackenzie in : Intermediate 2, Transport , add a comment

Here are the youtube videos I used in class today to help in our investigation of kinetic and potential energy. If you are in S4 then you can bookmark these for later as we will be looking at this in the Transport unit just before Christmas.

S4 Transport - extra notes about forces and energy February 11, 2007

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We’ve completed the unit of Transport now. I have uploaded the summary notes we went through on forces, work, power and energy. I’ve also made up 2 sets of notes to show you how to work your way through different types of problems based on potential and kinetic energy. All of the documents are pdf files.

forces

work, power and energy

potential energy examples

kinetic energy examples

S4 - Homework (Forces, Work & Power) February 6, 2007

Posted by mrmackenzie in : Transport , add a comment

Here is your homework for the next week.  Tomorrow we will be going over the General and Credit prelim papers and I will have paper copies of this homework to hand out.  I know some of you like to lose your homework on the bus home, so here is a copy you can download as a pdf file.  Hand your homework in next Wednesday (14th Feb).

homework on forces work and power

S4 Transport homework answers January 28, 2007

Posted by mrmackenzie in : Transport , add a comment

I’ve attached a set of answers to the most recent homework.

answers to transport hw1

S4 reaction times December 14, 2006

Posted by mrmackenzie in : Transport , add a comment

When we started the transport unit a couple of weeks ago, we investigated the reaction times of different people in the class by getting them to time how long it took for Andrew’s plasticine to fall from the ceiling to the floor.

I found a great game on the BBC website that will allow you to measure (and perhaps improve) your own reaction time .  Why don’t you try it for yourself and post your best times in a comment.