Physics 30 - Feb 27

Today we just had a review period for the in class assignment as well as the exam.  The date for the exam has been moved to March 9 and the in class assignment is now on March 2 due to my illness yesterday.  We will be beginning the new unit on Tuesday, March 3.  If you want the notes outline for the the second unit, you should print them from the blog.

Physics 30 - Feb 25

Today we finished up the first unit by looking at free fall problems.  These are just special kinematics problems that have a constant acceleration of gravity, which is 9.8 m/s/s.  We went through one example and then students had the rest of class to work on Assignment 1.7.  Tomorrow we are doing our first in class assignment on Unit 1.  Make sure you know how to do questions from every assignment in the first unit.

Physical Science 20 - Feb 25

Today in class we learned how to create a net ionic equation from a balanced chemical equation representing a double replacement reaction.  This involved figuring out the products and their final states, balancing them, figuring out the overall ionic equation and then determining the ions that formed the precipitate.  This allowed us to make a net ionic equation.  Students then had the rest of the period to work on Assignment C15.  We will go over this tomorrow.

This also completes the outcome on reactions for us.  Tomorrow we will begin to look at Math and the Mole.

Physics 30 - Feb 24

Today we just worked on Assignment 1.6.  Tomorrow we will do our final concept on free fall problems.  This stuff will be covered on the in class assignment on Thursday.

Physical Science 20 - Feb 24

Today in class we went over Assignment C14 after I checked it.  We then started to learn how to predict the products of a double replacement reaction.  This involved determining the states that the final products will be in as well as understanding what aqueous means.  We learned about dissociation of soluble ionic compounds as well as a couple of different type of chemical reactions.  The overall ionic equation and the net ionic equation.   These notes were all covered on slides 52-62 of the Chemical Reactions powerpoint.  Students were given slide 62 as homework, which involved determining the solubility of some ionic compounds using a solubility table.  We will go over this tomorrow.

Physics 30 - Feb 23

Welcome back everyone!  Today we looked at a particular tricky example called a twin object problem.  This type of problem involved looking at the motion of two separate objects that are linked somehow.  We ended up developing new equations based on kinematics and would have to employ the quadratic formula to solve these new equations.  Assignment 1.6 was assigned but students will be given some time on tomorrow to work on it. 

We are also approaching the end of the unit.  This means that some things will be happening.  The first In Class Assignment is set for Thursday, Feb 26.  The first unit exam is set for a week after that on Wed, March 4.  

Physical Science 20 - Feb 23

Welcome back everyone.  Today I checked Assignments C12 and C13. We then learned how to predict whether or not a single replacement reaction will happen.  To do this, you need to have access to an activity series table, which I handed out today.  In order for an element to be replaced, it has to have be placed lower on the activity series that the element that is replacing it.  It that is not the case, then no reaction will occur.  Be careful to form compounds correctly making sure to balance your charges.  As well, make sure to balance your equations at the end if you have a reaction.

I assigned Assignment C14 at the end of class and I will check this tomorrow.  Tomorrow we will continue on and look at whether or not a double replacement reaction will complete.