Friday, July 8, 2011

Activity 8

Building a molecule activity Trish Loebiein

1) B is a better representation because atoms are connected to each other for the bonding process
2) d both b and c are correct. They have the 3 hydrogen atoms and 2 nitrogen atoms
3) b the combination of hydrogen, oxygen and chlorine create a hydrochloric acid.
4) c both are stable one is carbon monoxide and one is carbon dioxide
5) The molecule is methane so the answer is a
6) The answer is d water
7) The molecule that was made is chlorine



Teacher Created Activity

For this activity we are going to run the radio waves and electromagnetic fields simulation.
Play around with the simulation just to see how it works and what different things you can do with it. Once you are ready to begin lets all set our options to the same so we have the same results.

1- Make sure your transmitter movement is on manual. Next change the field display type to curve, the field sense to force on electron and finally the field displayed to radiated field.

Now that you have all of your settings I would like you to answer a couple questions based on prior knowledge.

1) What do you think will happen if the transmit point is closer to the radio station?
2) What will happen if the point is closer to the top of the transmitter pole?
3) Is there anything that could interrupt the frequency no matter where on the pole the starting frequency is?

Now run the simulation with the beginning frequency at the lowest point possible.

1)What does the frequency look like and why do you think that this is? Explain

2) When the frequency is closets to the radio station what happens to those people in the house looking to pick up a radio signal?

3) Now try putting the beginning signal closet to the top of the pole. What changes do you see happening to the frequency?

4) Where do you think the best location for the beginning signal to take place? Explain your reasoning.

5) Now I want you to come up with two questions that still could be answered by the simulation that you completed. Why are they important and what would someone have to know in order to complete them?

Standards
C.8.1 Identify questions they can investigate using resources and equipment they have available
C.8.3 Design and safely conduct investigations that provide reliable quantitative or qualitative data, as appropriate, to answer their questions
C. 8.11 Raise further questions which still need to be answered

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