Gizmo Inclined Plane - Simple Machine Answer Key
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Jan is moving to a new apartment. She needs to load her sofa and other large furniture into a moving van. The rear of the moving van is 1.5 meters high. 1. What could Jan use to make loading furnit... ure on the van easier? Answers will vary. Sample answer: Jan could use a ramp to load the furniture. 2. Why would this help? Answers will vary. Sample answer: By using a ramp, Jan would not have to directly lift the furniture into the back of the truck. Gizmo Warm-up A simple machine can be used to make tasks like lifting heavy weights easier. One example of a simple machine is a ramp, or inclined plane. You can use the Inclined Plane – Simple Machine Gizmo to see how inclined planes can help to lift objects. On the CONTROLS pane, make sure the Angle is 30°, the Coeff. of friction is 0.00, and the Weight is 300 N. 1. The brick has a weight of 300 newtons (N). How much force would it take to lift the brick straight up? Slightly more than 300 N 2. Set the External force to On. Set the Applied force to 100 N and click Play ( ). What happens? The brick and car slide down the ramp. [Show More]
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