Physical Science 20 - Nov 10

Happy Friday everyone!  Even though it is Tuesday - it is like Friday.  Today in class we went over Homework 2.4 and then started to discover another property of light.  We started examining the property of reflection.  Students did Lab 2.3 on the reflection of light in a plane mirror.  They were just learning how to anaylize their data before the bell went to end the class.  We will finish up the analysis on Monday. Have a great long weekend everyone!

Physics 30 - Nov 9

Today we finished looking at collisions in one dimension by doing examples 22 and 23 in the notes.  Students then had the remainder of the class to work on Assignment 3.7.  Tomorrow we will start to look at how to solve problems involving collisions in two dimensions.

Physical Science 20 - Nov 9

Today in class we learned about the magnification equation as well how a pinhole camera works.  We took some notes and one example covered on slides 9-16 in the powerpoint.  Students then had the remainder of class to work on Homework 2.4.  I will check this tomorrow.  Tomorrow we are going to look at another property of light - how it reflects.

Physics 30 - Nov 6

e began to look at the conservation of momentum and how we can apply that to different situations.  We went over a couple of examples related to explosions and how to solve them with the conservation of momentum and then we also learned about the different types of collisions.  This was covered on slides 49-53.  We will looking at collisions on Monday with an examination of collisions in one dimension.

Physical Science 20 - Nov 6

Today in class we learned about the next property of light, called the rectilinear propagation of light - this means that light travels in straight lines.  Students did the Activity called Lab 2.1 and most students handed it in by the end of the period.  This lab does not require a formal lab report; students just need to hand in the sheet the accompanied the activity. This will be due on Monday. Have a good weekend everyone!

Physical Science 20 - Nov 3

Today we started our new unit on Physics and particularly light. We talked about the different properties of light and started looking at the speed of light in particular.  We learned that light travels very fast in a vacuum (300 million meters per second) and this makes calculating distances of very far objects easy.  These distances are called astronomical distances and we went over the definition of a parsec, a light year, and an astronomical unit.  We then looked at an example using these and students were assigned Homework 2.2.  We will go over this on Thursday for Period 2.  In Period 3, we didn't quite get to this assignment.  We will discuss when this will be due on Thursday.

There is a new powerpoint that students can download to get the notes for this unit.  It is found in the Physical Science 20 link on the right and the notes are in the Physics folder called Physics Notes.  We went through slides 1-7 today.  Thursday we will be looking at the rectilinear propagation of light.

Reminder that tomorrow is your Midterm exam for chemistry. 

Physics 30 - Nov 3

Today we started to look at momentum, what it is and how we measure it.  We also learned about the impulse momentum theorem.  This means that in order to change an object's momentum, one needs to apply a force to an object for an amount of time.  The product of the force and the time is called the impulse.  We went through examples 16, 17, & 18 and I assigned Assignment 4.6 at the end of the class.  

Reminder that tomorrow you have your in class assignment for the first half of this unit.  It is on Assignments 3.1-3.5.  As well, on Thursday, you have the quiz for lab 2.1.  Study the analysis for Lab 2.1.