Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Q: Fact: a switch is used to stop the flow of current in an electrical circuit

A: A switch is used to stop the flow of currents which causes Joule heating in?
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Q: Fact: flowing liquid can push objects

A: If a creek is headed to the west and a stone is tossed in and sinks, but a leaf also drops in and stays on top of the water, what will likely happen?
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Q: Fact: a barometer is used to measure air pressure

A:
O2 molecules stacked on top of each other create weight which is then tallied by a?
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