Newton's Law of Universal Gravitation
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Questions and Answers

What did Isaac Newton identify as the force responsible for the motion of objects and planets?

  • Electromagnetic force
  • Centripetal force
  • Frictional force
  • Gravitational force (correct)

    • What did Isaac Newton observe that made him start thinking about the force of gravitation?

  • The motion of the moon
  • The movement of planets
  • Objects floating in liquids
  • An apple falling from a tree (correct)

    • What is the activity described in the text related to?

  • Demonstrating centripetal force
  • Observing the orbit of the moon
  • Studying planetary motion
  • Understanding the motion of a stone under the influence of gravitational force (correct)

    • What is responsible for changing the speed or direction of motion of an object, according to what we have learned?

    <p>Force</p> Signup and view all the answers

    What did we always observe about an object dropped from a height?

    <p>It falls towards the earth</p> Signup and view all the answers

    What is the force responsible for the motion of objects, planets, and the moon called?

    <p>The gravitational force.</p> Signup and view all the answers

    What did Isaac Newton observe that led him to start thinking about the force of gravitation?

    <p>Isaac Newton observed the fall of an apple when he was sitting under a tree.</p> Signup and view all the answers

    What is the activity described in the text related to?

    <p>The activity is related to understanding the motion of the moon.</p> Signup and view all the answers

    What do we always observe about an object dropped from a height?

    <p>We always observe that an object dropped from a height falls towards the earth.</p> Signup and view all the answers

    What did we learn about the motion of objects and force as the cause of motion?

    <p>We learned that a force is needed to change the speed or the direction of motion of an object.</p> Signup and view all the answers

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