Isaac Newton and the Law of Gravitation Quiz
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What led Newton to develop his law of gravitation?

  • Observing an apple fall from a tree (correct)
  • Reading about previous scientific theories
  • Studying the movement of planets
  • Conducting experiments with different objects

    • What did Newton propose about the gravitational force?

  • It is directly proportional to the product of the masses of the bodies and inversely proportional to the square of the distance between the bodies (correct)
  • It is directly proportional to the sum of the masses of the bodies and inversely proportional to the cube of the distance between the bodies
  • It is directly proportional to the square of the distance between the bodies and inversely proportional to the product of the masses of the bodies
  • It is directly proportional to the cube of the distance between the bodies and inversely proportional to the sum of the masses of the bodies

    • What did Newton's law of universal gravitation extend to?

  • Objects on Earth's surface
  • All bodies that have some mass (correct)
  • Only celestial bodies
  • Objects in motion

    • What is the relationship between the gravitational force and the masses of the bodies according to Newton's law of gravitation?

    <p>Directly proportional</p> Signup and view all the answers

    How does the gravitational force change with the distance between the bodies according to Newton's law of gravitation?

    <p>Inversely proportional to the square of the distance</p> Signup and view all the answers

    What is the nature of the gravitational force according to Newton's proposal?

    <p>Only attractive</p> Signup and view all the answers

    What is the application of Newton's law of gravitation?

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

    What is the formula for the magnitude of the gravitational force exerted by a body of mass on another body of mass?

    <p>$F = G\frac{m_1m_2}{r^2}$</p> Signup and view all the answers

    What did Henry Cavendish determine in the 18th century?

    <p>The value of the universal gravitational constant</p> Signup and view all the answers

    In the gravitational force formula $F = G\frac{m_1m_2}{r^2}$, what does $r$ represent?

    <p>Distance between the centers of the two bodies</p> Signup and view all the answers

    What type of law is Newton's law of gravitation?

    <p>Inverse square law</p> Signup and view all the answers

    In the context of gravitational forces, what does the vector form of the force expression indicate?

    <p>The specific direction of the gravitational force</p> Signup and view all the answers

    What balances the gravitational pull of the Earth on the moon in the context of the moon's orbital motion?

    <p>The outward force of the moon due to its revolution around the Earth</p> Signup and view all the answers

    What is the force that causes the solar system planets, including Earth, to revolve around the Sun?

    <p>The Sun's gravitational pull</p> Signup and view all the answers

    What increases as the mass of celestial bodies increases and decreases as their distance to the revolving body increases?

    <p>The gravitational force exerted by the celestial bodies</p> Signup and view all the answers

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