Mini-Quiz: Center of Mass Location and Motion

1. How is the relationship for locations of the objects determined?

   Be setting location points on the coordinate lineCorrect. You know about location and motion. By comparing their massesGood try, but not right. Select another answer. By setting the CM to zeroSorry, not correct. Try another button.

2. How do you determine the velocity of an object from its position?

   They are the same itemsOops! Wrong answer. Re-read the question and try again. Velocity is a small change in position with respect to an increment in timeThat is Correct. You understand this concept. A change in position indicates the velocity is zeroSorry, not correct. Try another button.

3. Why is the only acceleration due to gravitation?

   The motion of the objects compensate for other accelerationsGood try, but not right. Select another answer. It is a fact that no one understandsOops! Wrong answer. Re-read the question and try again. Gravitation is the only force acting on the objectsCorrect. You know about location and motion.

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