Free Fall Gizmo_AshleeGray.docx - Name Ashlee L GrayDate Student Exploration Free-Fall Laboratory Vocabulary acceleration air resistance free fall

# Free Fall Gizmo_AshleeGray.docx - Name Ashlee L GrayDate...

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Name: Ashlee L. GrayDate: 9/19/17Student Exploration: Free-Fall LaboratoryVocabulary:acceleration, air resistance, free fall, instantaneous velocity, terminal velocity, velocity, vacuumPrior Knowledge Questions (Do these BEFORE using the Gizmo.)1.Suppose you dropped a feather and a hammer at the same time. Which object would hit the ground first?
2.Imagine repeating the experiment in an airless tube, or vacuum. Would this change the result? If so, how?
Gizmo Warm-upThe Free-Fall Laboratory Gizmo™ allows you to measure the motion of anobject in free fall. On the CONTROLS pane check that the Shuttlecockselected, the Initial height is 3 meters, and the Atmosphere is 1.Click Play() to release the shuttlecock. How long does it take to fall to the bottom? isAir.
2.Select the GRAPH tab. The box labeled h (m)should be checked, displaying a graph of height vs. time. What does this graph show?
3.Turn on the v(m/s)box to see a graph of velocityvs. time. Velocitythe speed and direction of the object. Velocity is also referred to as instantaneous velocity. Because the shuttlecock is falling downward, its velocity is negative.Does the velocity stay constant as the object drops? isNo.
4.Turn on the a(m/s/s)box to see a graph of accelerationvs. time. Acceleration is the rate atwhich the velocity changes over time. What does this graph show?
Activity A: Falling objectsQuestion: What factors affect how quickly an object falls?1.Observe: Drop each item through Airfrom a height of 3 meters. Record how long it takes tofall below. For the tennis ball, try to click Pause() when it hits the ground.Get the Gizmo ready: ● Click Reset().Select the CONTROLS tab.