Understanding Physical Science

Mini-Quiz: Gravitation and Center of Mass

SCSchool for Champions LLC

Take this Mini-Quiz to check your understanding of the lesson material.

QUIZ

Self-check your understanding

What determines the separation ratio of two objects from the center of mass?
It is an arbitrary distanceGood try, but not right. Select another answer. The masses of the objectsCorrect. You understand the basic concepts. The gravitational constantSorry, not correct. Try another button.
How do the two objects move with respect to the CM?
They always move in opposite directionsThat is Correct. You are doing a great job. They always move toward the CMSorry, not correct. Try another button. They remain stationary with respect to the CMOops! Wrong answer. Re-read the question and try again.
Why is the tangential velocity component independent of gravitation?
It has no massGood try, but not right. Select another answer. It is in the opposite direction of gravitationOops! Wrong answer. Re-read the question and try again. It is perpendicular to the gravitational forceCorrect. You understand the basic concepts.

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

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

Know your strengths

Resources and references

Websites

Center of Mass Calculator – Univ. of Tennessee – Knoxville (Java applet)

Center of Mass – Wikipedia

Gravitation Resources

Questions and comments

Do you have any questions, comments, or opinions on this subject? If so, send an email with your feedback. I will try to get back to you as soon as possible.

Self-check your understanding

Resources and references

Websites

Questions and comments

More in Understanding Physical Science