Mini-Quiz: Applications of Fluid Principles

1. If the area of the larger piston in an hydraulic device doubles, what happens to the force applied to that piston?

   It stays the sameSorry, not correct. Try another button. It doublesThat is correct. You are becoming a physics Champion. It is cut in halfGood try, but not right. Select another answer.

2. How can a plane fly up-side-down?

   It can only be done in the moviesSorry, not correct. Try another button. By flipping its wings inside-outOops! Wrong answer. Re-read the question and try again. By flying at a slight upward angleCorrect. You sure are smart.

3. Why doesn't a fluid have a rough surface like a solid?

   It does, but you can't see itGood try, but not right. Select another answer. A fluid's surface has no distinct shapeThat is correct. You are becoming a physics Champion. Fluids are all slipperyOops! Wrong answer. Re-read the question and try again.

Pick an answer to see instant feedback. Re-read the lesson if you miss one.