Sunday, May 8, 2016

Units of pressure

In this unit we are going to have to make a lot of conversions especially for pressure. There are a variety of ways to measure pressure!
 
http://www.peter-entner.com/e/theory/MassB/img-MassB-2/Tab-ConversionFactorsPressure.png

An example of a conversion is:
Convert 1 Pa to Atm and the answer would be 9.8692 X 10^-6 atm.

Here are some more examples and help:
Link 1
Link 2
Link 3


Avagadro's Law

Avagadro's Law portrays the relationship between moles and volume. Through his law we can see that when the moles increase the volume increases and what the moles decrease the volume decreases making this relationship proportional.
*Make sure to keep temperature and pressure constant
*Another important thing to remember is Avagadro's number: 6.02 X 10^23
Here is the equation you use to find the amount of moles in a gas:

http://thescienceclassroom.org/wp-content/uploads/2013/04/Avogadros-Law.png

Also here is a link that might help!

Charles Law

Charles law explains the relationship between temperature and volume. Through this law we are able to see that temperature and volume have a proportional relationship meaning as one increase the other increase and vise versa. We can see this in the following equation:

http://www.one-school.net/Malaysia/UniversityandCollege/SPM/revisioncard/physics/heat/images/charleslawformula.png

With each of these new laws we must make sure everything else is held at a constant. For example, for Charles law you need to ensure that pressure is kept constant.

Here is a video to help with Charles law!


Friday, May 6, 2016

Boyles law

Boyles law tells us the relationship between pressure and volume:

https://www.bing.com/images/search?q=boyle%27s+law&view=detailv2&&id=CC67E449716DD8B7BCA8CB62E060041963FBFF9E&selectedIndex=0&ccid=5AyfQEtf&simid=608030918989187908&thid=OIP.Me40c9f404b5fda775db0d2739803922bH0&ajaxhist=0

In this law we see that pressure and volume are inversely proportional to each other. We can also see this is the equation:
http://www.oneschool.net/Malaysia/UniversityandCollege/SPM/revisioncard/physics/heat/images/boyleslawformula.png
Here is a video of Boyle's Law!

Thursday, April 28, 2016

Phases changes and Heat/Cooling Curves


https://upload.wikimedia.org/wikipedia/commons/e/e5/Water_Phase_Change_Diagram.png
This graph shows different phase changes
Here is a link to help!
Here is a link to help!



http://cheller.phy.georgiasouthern.edu/gears/Units/4-Life/SETI/TerraformMarsEdited/TerraformMars/TerraformMars/waterphase.png
 This second diagram is a Phase diagram it shows a representation of the states of a substance in relation to temperature and pressure. Major things you need to look for on this graph is the triple point, critical temperature, critical pressure, and critical point
Here is a link to help!






Friday, April 22, 2016

Calculating Heat

To calculate heat you need to use the formula:
Example:


Here are some links that help with specific heat:
Link 1
Link 2
Link 3

Friday, April 15, 2016

Putt-putt boats

This is one project I very much enjoyed! Durin this project we made putt putt boats using the fuel and boats we made in class! We ended up racing our boats and my partner and mines boat ended up going the fastest! We made our boat out of a half and half container and the motor we were given in class. Here is what the motor looked like:

http://freepdfplans.de.vu/pdfboatplans/wp-content/upload/2014/01/boat/how-to-make-a-putt-putt-boat-engine.jpg

Here are some examples on how to make a putt putt boat
Link 1
Link 2
Link 3