Multiple Choice Questions

Suppose the Sun were suddenly to shrink in size but that its mass remained the same. According to the law of conservation of angular momentum, what would happen?
  • - It will end up on an orbit that is farther from the Sun.
  • - greater than your normal weight at rest
  • - the total temperature of the objects
  • The Sun would rotate faster than it does now
Suppose you kick a soccer ball straight up to a height of 10 meters. Which of the following is true about the gravitational potential energy of the ball during its flight?
  • - greater than your normal weight at rest
  • - because the gravitational attraction between Earth and the Moon varies more across Earth than does the gravitational attraction between Earth and the Sun
  • the ball's gravitational potential energy is greatest at the instant when the ball is at its highest point.
  • C - A tremendous amount of gravitational potential energy would be converted into other forms of energy, and the Sun would spin much more rapidly.
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Multiple Choice Questions
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