Mini-Quiz: Equivalence of Inertial Mass and Gravitational Mass

1. What does Newton's Second Law of Motion imply?

   Inertial mass is related to force and accelerationCorrect. You know the equivalence principles. Objects can move freely without a forceCorrect. You know the equivalence principles. Action equals reactionGood try, but not right. Select another answer.

2. If you double the acceleration of an object, how would that affect its inertia mass?

   The acceleration has no effect on the mass of the objectThat is Correct. You are doing great! The mass would double, since it is proportionate to the accelerationOops! Wrong answer. Re-read the question and try again. The mass would become gravitational mass, provided a = gSorry, not correct. Try another button.

3. What happens when the separation of masses is the radius of the Earth?

   The masses will repel each otherOops! Wrong answer. Re-read the question and try again. Mass increasesGood try, but not right. Select another answer. Gravitation acts like gravityCorrect. You know the equivalence principles.

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