Explain that concept

We are getting close to the common test. One last thing to prepare for is the explain questions that are definitely going to be part of the test.

The following link is to a document of explain questions.



Explain Questions

Re-arranging equations

What would it be like If you had your own pet teacher ?

• who could show you how to re-arrange equations and
• do it over and over again until you got it
• and the teacher would never get tired
• never get bossy
• never tell you off for not paying attention

Well get real folks, teachers like that do not exist, but youtube videos do. 

The following links lead to a couple of simple demos on re-arranging equations. By the look of things there are heaps more if these don't do it for you.

1. Re- arranging equations using Physics examples   
2. Re-arranging equations maths examples

 

here are some static pages if your internet connection is slower

 

1. Algebra instructions from Massey University
2. A pdf file on re-arranging equations

 

 

 

 

Energy and combined mechanics

We've spent the last couple of spells carrying out some "serious" research into:

• spring constant
• elastic potential energy
• energy transfer
• projectile motion

It has been a real life combined mechanics problem using rubber bands, retard stands, force meters and folded up pieces of paper. Luckily no lasting injuries were sustained but it became apparent that some work needs to be done on re-arranging equations.

 

The homework sheet for the weekend on "Kinematics, Momentum and Energy" should give you some more practice.

 

Happy Physics   

Tutorial

Monday lunchtime in room B5. If you have any questions about what we've been doing in class or need to figure out what it was I was trying to explain to the class come along to B5 on Monday.

Energy

This weekend  your homework is to finish the all activities from the handout you recieved on Thursday. Energy is in part, a revision topic from the year Eleven science course. So make sure you are confident with all these problems.

Moving in Circles

Your homework is to complete the activity 12A on page 143 of our Physics text book.

 

Next spell we begin our final topic "Energy".

Moving in Circle

I was impressed to see how enthusiastically the class took on Friday's challenge to determine the mass of a retort stand using a known mass and the principles of equilibrium. Well done class!

This week our topic is circular motion. For me this topic starts to explain why we began the year going on so much about the quantity velocity having two components, magnitude and direction. All the circular motion problems we will consider involve the magnitude of the velocity remaining constant but as the objects are moving in a circle the direction of the movement is continually changing.

This means the velocity is constantly changing and as acceleration is the rate of change of velocity the object will be accelerating.

Homework assignment

You should have picked up your NCEA style question on momentum at the end of our class today.

Please complete this for our lesson on Thursday. Help me out here class I need some positive stuff to feedback to your parents next Tuesday!

Keep Working

We're on the home straight now. Projectile motion is finished you just need to complete the activities 11A and B.

Don't forget parent teacher interviews are on next Tuesday evening.