close window
Questions for Discussion: Buoyancy Brainteasers: Balloon-in-Car Puzzler
Before you make a selection, which answer do you think is correct? Why? Explain why the balloon goes forward when the car does. Imagine a cork floating in a jar of oil in a moving car. If the car -- and the jar along with it -- accelerates, will the cork move forward or backward in the oil or stay in the same place? Explain. What if the car -- and the jar along with it -- stops suddenly? Will the cork move forward or backward in the oil or stay in the same place? Explain.
