Transverse Waves: Investigation 1, Part 2, Session 2 Name: ________________ Cohort: _______ 1/10/2019 Do Now Describe two differences you see between longitudinal and transverse waves. 1. 2. Learning Target: I can use a wave model to represent the basic properties of transverse waves by using a wave mode. Focus Question: What defines a wave? Launch Video: Longitudinal vs. Transverse Waves Name one difference between longitudinal and transverse waves: Transverse wave definition: A wave in which the motion of the wave is perpendicular to the movement of the wave. __________________________________ __________________________________ Making a Transverse Wave Materials Spring with tape “flag” Roles Anchor - holds one end of the spring in one spot on the table. Wave-maker - holds the other end of the spring and pushes the spring to make waves. Flagger(s) - stands on either side of the spring and observes waves. Remember ● The spring is a delicate piece of science lab equipment that you, as scientists, are entrusted with. ● Keep the spring entirely in contact with the table at all times. ● If a spring becomes tangled, you should call Mrs. Joins over for assistance. Procedure 1. Anchor holds one end of the spring on one of the table markings, and wavemaker holds the other end of the spring and stretches it to the other table marking. 2. Wavemaker creates ONE wave using a side-to-side motion that is exactly perpendicular to the spring direction. 3. Flagger(s) observe how the wave travels to the anchor and returns. 4. All students record observations on next page. Transverse Wave Observations Draw a diagram of your wave. Include the labels: node, crest, trough. ☆Key Takeaway ☆ Match the pairs! Crest A low point of a wave. Trough A length of one wave. Node Wavelength Amplitude The height of the peaks above the resting line in a wave. A point where a wave crosses its resting line. A high point of a wave. Exit Ticket Name: ________________ Cohort: _______ 10.14.19 1. Does a transverse wave move in the direction of the spring or perpendicular to the spring? a. In the direction of the spring. b. Perpendicular to the spring. 2. Node: A point where a wave crosses its resting line. Crest: A high point of a wave. Trough: A low point of a wave.