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Questions and Answers
What did Galileo observe about the motion of objects on an inclined plane?
What did Galileo observe about the motion of objects on an inclined plane?
- Objects move with a constant speed when no force acts on them. (correct)
- Objects stop moving when no force acts on them.
- Objects move slower when no force acts on them.
- Objects move faster when no force acts on them.
What happens to the velocity of a marble as it rolls down an inclined plane?
What happens to the velocity of a marble as it rolls down an inclined plane?
- It decreases
- It remains constant
- It stops
- It increases (correct)
According to Galileo, if a marble is released from an inclined plane and goes up on the opposite side to the same height, what does this suggest?
According to Galileo, if a marble is released from an inclined plane and goes up on the opposite side to the same height, what does this suggest?
- The marble has external forces acting on it
- The marble defies gravity
- The inclinations of the planes are equal (correct)
- There is no friction involved
What would happen if the angle of inclination of the right-side plane in Fig. 9.5(c) were gradually decreased?
What would happen if the angle of inclination of the right-side plane in Fig. 9.5(c) were gradually decreased?
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What is required to change the motion of a marble according to Galileo?
What is required to change the motion of a marble according to Galileo?
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What does Galileo's observation imply about sustaining the uniform motion of a marble?
What does Galileo's observation imply about sustaining the uniform motion of a marble?
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