123958-30bb6b5a-f749-4d99-8bbc-8e86c11d500e.pdf - Directions for the Uniform Circular Motion(UCM Lab On a separate sheet of paper to be turned in with

123958-30bb6b5a-f749-4d99-8bbc-8e86c11d500e.pdf -...

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Student Exploration: Uniform Circular Motion Vocabulary: acceleration, centripetal acceleration, centripetal force, Newton’s first law, Newton’s second law, uniform circular mo tion, vector, velocity Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. A boy is whirling a yo-yo above his head in a counter- clockwise direction. At the exact moment shown at left, he lets go of the string. In which direction will the yo-yo travel? Draw an arrow on the image to show the yo-yo ’s direction . 2. Do you think the released yo- yo’s path will be straight or curved? Explain. _________________________________ _______________________________________________ Gizmo Warm-up The Uniform Circular Motion Gizmo™ shows a pink puck that is floating above a circular air table. The puck is held to the center of the table by a string so that it travels in a circle at a constant speed. Check that the radius is 8.0 m and the mass is 5.0 kg. Set the velocity to 5.0 m/s. 1. Turn on Show puck position (m) . What are the coordinates of the puck’s position? __________________ 2. Click Play ( ), and then click Pause ( ) when the puck is close to the y- axis. What is the puck’s position now ? __________________ 3. Click Reset ( ). Select the BAR CHART tab and select Velocity from the dropdown menu. The three bars represent the magnitude, the x component, and the y component of the puck’s velocity . A. Click Play . Does the magnitude of the velocity change over time? _______________ B. Do the x and y components of the velocity change over time? _______________ Directions for the Uniform Circular Motion (UCM) Lab: On a separate sheet of paper to be turned in, with your name on it, Titled: UCM Lab, answer each of the questions in the lab. Label, and number sections, & create graphs, tables, or charts when necessary to replicate lab questions in which to put your answers.
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  • Fall '16
  • Mazz

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