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Interactive Lesson Information related to A.S. 4.2.1 – 4.2.8 Please use your warm-up sheet and your notes, as directed, to work yourself through this exercise.

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Presentation on theme: "Interactive Lesson Information related to A.S. 4.2.1 – 4.2.8 Please use your warm-up sheet and your notes, as directed, to work yourself through this exercise."— Presentation transcript:

1 Interactive Lesson Information related to A.S. 4.2.1 – 4.2.8 Please use your warm-up sheet and your notes, as directed, to work yourself through this exercise. We will do the lab intended for today, tomorrow.

2 Before you begin your notes: www.gradegorilla.com www.gradegorilla.com www.gradegorilla.com Click on “IB Physics” Select the WAVES A from the 2016 column http://gradegorilla.com/IBwaves2/wavesA2016_1.php Complete the assessment once, submit your scores, and reflect about the following (on a separate sheet of paper that you should turn in before continuing to the next slide): - how well you did relative to your previous attempt a couple weeks ago - What questions’ topics you are still confused about or struggling with related to oscillations?

3 In your notes: Find the definitions for the following (use the links provided below) and summarize, in your own words, what each of these terms mean: Mechanical Wave Wave Pulse Continuous (traveling) wave Resource #1Resource #2 Resource #1Resource #2

4 Warm-up (pt. 1) A wave pulse is created by very sharply moving the free-end of a cord (or spring) to the side and back to its original position. How will the speed of this wave pulse be affected if you increase the tension on the cord (tighten it)? A. The speed will NOT be affected by the tension of the cord. B. The wave pulse will travel SLOWER in the tightened cord. C. The wave pulse will travel FASTER in the tightened cord Explain your choice:

5 Warm-up (pt. 2) A continuous wave is created by moving the end of a cord back and forth at a steady rate. If the distance the cord is displaced doubles (i.e. you move your hand back and forth twice as far) but the rate at which you create the wave remains constant, how will the speed of the wave be affected? A. The speed will NOT be affected by the amplitude of the cord. B. The wave pulse will travel HALF AS FAST when the amplitude is doubled. C. The wave pulse will travel TWICE AS FAST when the amplitude is doubled. D. The wave pulse will travel FASTER, but not necessarily twice as fast when the amplitude is doubled. E. The wave pulse will travel SLOWER, but not necessarily half as fast when the amplitude is doubled. Explain your Choice:

6 In your notes: What do mechanical waves carry as they travel? A. Matter? B. Energy? C. Both? Find a reliable reference online to support your answer. Summarize what is said in support of your answer, and cite your online source.

7 In your notes: Define/describe the following vocabulary terms, as they relate to mechanical waves. Use the links below to help you if you get stuck (or find your own…NOT wikipedia). Amplitude Wave Frequency Period Medium Wave Propagation Wavelength Resource 1bResource 2b Resource 1bResource 2b


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