Running out of
Get the Gizmo ready:
Question: Why do objects slow down when there is nothing pushing them?
Observe: Use the Gizmo to explore the question above. Try different objects and surfaces. Each time, turn
while the cart is moving. (You may find it helpful to pause the Gizmo with the
button, turn the fan off, and then click
Form hypothesis: What causes an object to slow down after no longer being pushed?
. Based on your hypothesis,
surfaces that will cause a moving
cart to slow down after the fan is turned off. (You may circle more than one.)
Test: Run the trials using the Gizmo. Which surface(s) caused the cart to slow down?
Draw conclusion: What causes objects to slow down when they are no longer pushed?
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