Mini-Quiz: Derivation of Circular Orbits Around Center of Mass

by Ron Kurtus (revised 14 May 2011)

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

1. What do you compare to find the circular orbital velocity?

Gravitational force and centrifugal force

The mass of the larger versus the mass of the smaller object

2. What is the relationship between tangential velocity for circular orbits and mass?

Velocity is independent of the mass of the objects

The velocity of an object is a function of the mass of the other object

The velocity of an object is only dependent on its mass

3. What appears to happen when one object is much larger than the other?

The larger object appears to orbit the much smaller object

The smaller object appears to orbit the much larger object

The objects remain stationary in space

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.

Try to figure things out

Resources and references

Ron Kurtus' Credentials

Websites

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

Center of Mass - Wikipedia

Gravitation Resources

Books

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.

Students and researchers

www.school-for-champions.com/science/
mini-quiz_gravitation_orbit_center_of_mass_derivation.htm

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