https://phet.colorado.edu/en/simulations/wave-on-a-string

8.1 Assignment 3: Exploring Wave Interference Overview In this activity, you will review key concepts about wave interferences and standing waves. Materials Needed / Resource Bank 0 PhET Simulation: Wave on a String Instructions Answer the below questions one at a time. Make sure to read directions within each question carefully. Questions 1. a) In your own words, describe reflection, diffraction, and superposition of waves. b In our own words, what is a standin wave? 2. Follow the directions in the below procedure to observe a wave and answer some questions. Procedure 1. Go to the webpage PhET Simulation: Wave on a String 2. Select the \"Oscillate\" option in the top right comer D 3. Press the pause button I Restart i Press the restart button on the top left ' (not at the bottom right) Select the \"slow motion" option near the bottom of the page Do not change other settings (should be \"Fixed End\10. Describe where and when you observe superposition of waves occurring in this simulation, 11. Ex Iain whether ou are observin a standin wave at an time. 3. Follow the directions in the below procedure to observe a wave with zero damping and answer some questions. Procedure On the simulation, press the pause button Press the restart button on the top left. The \"slow motion\" should still be selected. Set the tension to the highest level. Set the damping to the lowest level. The \"timer\" should still be showing. Press the play button to start the wave and press the start button on the timer. Observe the motion of the wave for about 30 seconds. Think about when you see the wave reflecting at the right and left end. Think about if and when you observe a standing wave, how long does it seem to last? 9. Rewatch by pressing the restart button on the top left of the page and restarting the timer. 10. Write 23 sentences describing the behavior of the wave. 11 . You should have observed a standing wave for a period of time, how long did the standing wave seem to last? PNQ'WPWPT' 4. Follow the directions in the below procedure to observe a wave with 100% damping and answer some questions. Procedure On the simulation, press the pause button Press the restart button on the top left. The \"slow motion\" should still be selected Make sure the tension is still set to the highest Set the damping to the highest The timer should still be showing 12. Press the play button to start the wave and restart the timer. 13. Observe the waves for about 15 seconds. 14. Press the pause button 93.01.4399)? 15. Press the restart button on the top left. 16. Set the tension to the lowest setting 17. Press the play button and restart the timer 18. Observe the waves for about 15 seconds. 19. Write 23 sentences describing the behavior of the wave in these two simulations. 20. How is the wave behavior different here compared to the previous simulations in Question 2 and 3 when there was low and no damping? Explain what you think damping means and why it is causing a different behavior in the waves