Copy of 13-IS5T1 Explain 3: Understanding Waves - Student Handout_IS5T1 Properties of Waves Name Max Gannon Date Period 5 Explain 3 Understanding Waves

Copy of 13-IS5T1 Explain 3: Understanding Waves - Student...

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Student Handout_IS5T1: Properties of Waves Name Max Gannon Date 3-13-20 Period 5 Explain 3: Understanding Waves Read, highlight and annotate (make sure you leave annotations like this one indicating why you chose to highlight that text) the article! Waves Transfer Energy In this section, you were able to send energy from one end of the coiled spring to the other. The coiled spring “transferred” the energy from one end to the other but the spring remained in essentially the same place before and after the pulse moved. A wave is a transfer of energy with no net transfer of mass (definition of a wave) . When a baseball is thrown down a hallway, the kinetic energy of the ball also moves from one place to another. However, in contrast to the wave in the spring, the ball “transfers” the energy with a transfer of its mass. To transfer energy along the coiled spring in the Explore, you used chemical energy stored in the muscles of your arm. This energy was transferred to your arm as mechanical energy. You passed that on to the coiled spring at one end by whipping it over a certain distance. The coiled spring then had energy. A piece of paper at the other end of the coiled spring moved when the wave arrived there. The ability to move the piece of paper indicates that energy is present. If you whip the coiled spring with a greater amplitude, you have to provide more energy, and the piece of paper will have more energy when the wave goes by. The energy was transferred from one form to another, but the total energy remained the same. Energy is always conserved. The coiled spring is the medium through which the wave travels and through which the energy is transferred. You will learn later in the course that light is a transverse wave that requires no medium! For water waves, the medium is the surface of the water. Leonardo da Vinci stated, “The wave flees the place of creation, while the water does not.” Imagine dropping a ball into a pool of water. Waves come from the center of the ball’s position in the water. As the water moves up and down, the wave moves out from the center of its source, often in concentric circles.
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