Phet Simulation Solids_ Liquids_ Gases_ Gas Laws

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```					            PHET SIMULATION: Solids, Liquids, Gases, and Gas Laws
I CAN: use the kinetic theory to explain the behavior of solids, liquids, and gasses.

ALL ANSWERS TO THE FOLLOWING QUESTIONS WILL BE ON A SEPARATE SHEET OF PAPER!

1. Open Gas Properties and then use the pump to put a little gas into the box.
a. Observe gas particles’ behavior.
b. Pump in some lighter particles and ON A SPEPERATE SHEET OF PAPER list the similarities and
differences that you see between heavy and light particles.
c. Use the simulation to see how changing the temperature affects the behavior of the gas
particles.
d. Write a description for a gas based on your observations; include a drawing to help with your
description.

2. How fast do you think the air particles in this room are moving compared to a car going 50 mph (about
22m/s)?
***CHECK IN WITH MR. RUSSELL***

3. Using the simulation, test your idea from question 2 and give evidence to support or revise your thoughts.
For evidence, include how you used the simulation to collect data, and any calculations you used to find

4. Sketch a graph of Kinetic Energy (motion of particles) vs. Temperature. Use this graph to describe the
relationship between kinetic energy and temperature.

***CHECK IN WITH MR. RUSSELL***

5. Write a paragraph that explains the differences and similarities between solid, liquid and gas particle
motion; include drawings to help with your explanations.

***CHECK IN WITH MR. RUSSELL***
PHET Simulation: Gas Laws
I CAN: predict changes in gas pressure due to changes in temperature, volume, and number of particles.

1.) Open Gas Properties and then use the pump to put a little gas into the box.
a. Observe the gas particles behavior.
b. Describe the behavior of the gas particles on a separate sheet of paper.
***CHECK IN WITH MR. RUSSELL***
It is stated that changes in the volume, temperature, and pressure have predictable effects on the behavior of
a gas.
 At the top right of your simulation you can keep the volume, temperature, and pressure constant by
clicking on each individual circle.
 You can change the volume by sliding the left side of the container (by the little man)
 You can change the temperature of the simulation by turning the heat control up or down.

Your job is to figure out how volume, temperature, and pressure affect the behavior of a gas. Be sure to focus
on what happens when you change something specific, how does it affect the gas?

An example statement would be (this statement is not correct, but is how your response needs to be
worded):
As the temperature of the gas molecules increased from 21-200K, gas molecules decreased in movement and
the pressure decreased from 1atm to 0atm with a constant volume of gas. I observed this when I turned the
temperature up on the simulation because the overall pressure dropped inside the container.

   One variable temperature, pressure, volume, MUST REMAIN CONSTANT in each simulation that you
run!

    In each of your statements you must include: starting temperature, ending temperature (actual
numbers). Starting pressure, ending pressure (actual numbers), starting volume, ending volume (how
far did you move the little man, large volume or small volume?)

    After you complete a statement, you need to CHECK IN WITH MR. RUSSELL!!

    By the end of this simulation you should be able to explain and predict what will happen to a gas based
on the temperature, pressure, and volume.

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