Mini-Quiz: Gravitational Escape Velocity Derivation

1. At what point is the escape velocity of a rocket determined?

   At the altitude that the rocket engine turns offThat is correct. You understand escape velocity. When the rocket leaves the groundSorry, not correct. Try another button. At the point that KE = PEGood try, but not right. Select another answer.

2. Why must the final total energy be considered at infinity?

   No one is really sure why, except that it worksSorry, not correct. Try another button. It is to make the escape velocity much largerOops! Wrong answer. Re-read the question and try again. Gravitation hypothetically extends to infinityCorrect. You are close to being a genius.

3. What law is used to determine the escape velocity equation?

   The Law of Conservation of MassGood try, but not right. Select another answer. The Law of Conservation of EnergyThat is correct. You understand escape velocity. Einstein's Law of RelativesOops! Wrong answer. Re-read the question and try again.

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