An old helium-filled balloon is hovering near the floor in the middle of a room.

Question

An old helium-filled balloon is hovering near the floor in the middle of a room. There is an air vent on the floor near the wall. When air begins to blow out of the vent, what happens? ****CHOOSE ALL THAT APPLY***** ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1) air pressure above the vent rises 2) air pressure above the vent remains the same 3)air pressure above the vent drops ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1) the balloon moves toward the vent 2) the balloon moves away from the vent 3) the balloon does not move

Explanation / Answer

3)air pressure above the vent drops

3) the balloon does not move

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