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https://phet.colorado.edu/en/simulations/molecules-and-light 8.2 Assignment 3: Exploring How Electromagnetic Radiation Affects Molecules Overview In this activity, you will review key characteristics about electromagnetic radiation by exploring how
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8.2 Assignment 3: Exploring How Electromagnetic Radiation Affects Molecules Overview In this activity, you will review key characteristics about electromagnetic radiation by exploring how various types of electromagnetic radiation affect molecules. Materials Needed / Resource Bank . PhET Simulation: Molecules and Light Instructions Answer the below questions one at a time. Make sure to read directions within each question carefully. Questions 1. a) Review the lesson video "What is Electromagnetic Radiation" or your key notes to recall the approximate wavelengths of the following four types of electromagnetic radiation: visible light, microwave, infrared, and ultraviolet (UV). b) Order these four types of electromagnetic radiation from shortest to longest wavelength c) Order these four types of electromagnetic radiation from lowest to highest energy2. a) In your own words, describe the wave-particle duality nature of electromagnetic radiation. What is a photon? b) If electromagnetic radiation affects a molecule, what do you think it might do to the molecule? c) Hypothesis: Which of the four types of electromagnetic radiation listed in #1 do you think will have the greatest effect on molecules? Which do you think will have the least effect on molecules? Explain your reasoning. 3. Follow the directions in the below procedure. Note: The word \"light\" in science is often a term used to describe all forms of electromagnetic radiation, even though the nonscience world usually uses the word \"light\" to mean just visible light. Procedure 1. 2. 3. \"599"?l Go to the webpage WWW Select the \"Visible\" light Click on the green button on the flashlight to turn on the electromagnetic radiation. You should see \"photons\" of the radiation shooting out from the device. Observe if the radiation does anything to the molecule as photons of the radiation travel forward. Watch for at least 15 seconds. Click through each molecule listed on the right and observe if there are any effects. Make sure to watch each molecule for at least 15 seconds. If there is an effect, record the type of electromagnetic radiation, the molecule, and what you observe. Record your information in an organized fashion such as creating a data table. II ' After checking each molecule, press the pause button J Select the \"Microwave\4. a) Describe any patterns / trends observed in your results from Question #3. b) Do your observations support or not support your hypothesis in #2c? 5. In the simulation, you should have observed some molecules vibrate or rotate when hit by certain electromagnetic radiation. You should have noticed that when the molecule absorbed the photon, that is when the molecule began to vibrate or rotate. When the molecule stopped vibrating /rotating, it emitted the photon. Explain how this phenomenon demonstrates the "Conservation of Energy" theory 6. a) Based on your observations from this investigation, what is one question you would want to further investigate? b) In 2-3 sentences, describe how you might investigate yourStep by Step Solution
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