RollerCoasterSE.pdf - Alena Hicks Name Date Student...

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2019 Name: ______________________________________ Date: ________________________ Student Exploration: Roller Coaster PhysicsVocabulary:friction, gravitational potential energy, kinetic energy, momentum Prior Knowledge Questions (Do these BEFORE using the Gizmo.)Sally gets onto the roller coaster car, a bit nervous already. Her heart beats faster as the car slowly goes up the first long, steep hill. 1. What happens at the beginning of every roller coaster ride? 2. Does the roller coaster ever get higher than the first hill? Explain. Gizmo Warm-upThe Roller Coaster Physics Gizmo models a roller coaster with a toy car on a track that leads to an egg. You can change the track or the car. For the first experiment, use the default settings (Hill 1 = 70 cm, Hill 2= 0 cm, Hill 3= 0 cm, 35-g car). 1. Press Play() to roll the 35-gram toy car down the track. Does the car break the egg? 2. Click Reset(). Set Hill 1to 80 cm, and click Play. Does the car break the egg? 3. Click Reset. Lower Hill 1back to 70 cm and select the 50-gram toy car. Click Play. Does the 50-gram car break the egg? _________ 4. What factors seem to determine whether the car will break the egg?
2019 Activity A: Roller coaster speed Get the Gizmo ready: Click ResetSelect the 35-g toy car. Question: What factors determine the speed of a roller coaster? 1. Observe: Set Hill 1to 100 cm, Hill 2to 0 cm, and Hill 3to 0 cm. Be sure the Coefficient of friction is set to 0.00. (This means that there is no friction, or resistance to motion.) A. Click Play. What is the final speed of the toy car? B. Try the other cars. Does the mass of the car affect its final speed? 2. Collect data: Find the final speed of a toy car in each situation. Leave the last column blank. Hill 1 Hill 2 Hill 3 Final speed 40 cm 0 cm 0 cm 40 cm 30 cm 0 cm 60 cm 50 cm 20 cm 60 cm 0 cm 0 cm .

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