Gravitation and Newton's Laws Quiz
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Questions and Answers

What is the formula for gravitational force between two masses?

  • F = (G.M1 - M2)/d^2
  • F = G(M1 + M2)/d
  • F = (G.M1.M2)/d^2 (correct)
  • F = (G.M1.M2)/d
  • What happens to the gravitational force if the distance between two bodies is doubled?

  • It is halved.
  • It remains the same.
  • It is quadrupled.
  • It is decreased by a factor of four. (correct)
  • What is the unit of gravitational constant (G)?

  • Nm^2/kg^2 (correct)
  • kg/Nm^2
  • Nm/kg^2
  • N/kg
  • If the mass of one body is tripled and the distance is halved, how does the gravitational force change?

    <p>Increases by a factor of 12 (B)</p> Signup and view all the answers

    What does a gravitational constant (G) value of 6.67x10-11 Nm²/kg² indicate?

    <p>The force between two unit masses 1m apart is 6.67x10-11 N (D)</p> Signup and view all the answers

    What is directly proportional to the gravitational force according to Newton's law of gravitation?

    <p>The product of the masses (C)</p> Signup and view all the answers

    When does the gravitational force between two bodies equal the gravitational constant?

    <p>When the masses are 1 kg each and distance is 1 m apart (A)</p> Signup and view all the answers

    How does the gravitational force depend on distance?

    <p>It inversely depends on the square of the distance (D)</p> Signup and view all the answers

    What does the 'G' in the gravitational formula F = (G.M1.M2)/d² represent?

    <p>Gravitational constant (C)</p> Signup and view all the answers

    What is the effect on gravitational force if both masses are doubled?

    <p>It is quadrupled (A)</p> Signup and view all the answers

    Flashcards

    Gravitational force

    The force of attraction between any two objects with mass in the universe.

    Formula for Gravitational Force

    The formula that calculates the gravitational force between two objects.

    Unit of Gravitational Force

    The unit of measurement for gravitational force.

    Effect of Mass on Gravitational Force

    The product of the masses of the two objects directly impacts the gravitational force.

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    Effect of Distance on Gravitational Force

    The square of the distance between the centers of the two objects inversely affects the gravitational force.

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    Newton's Universal Law of Gravitation

    A statement explaining the relationship between the gravitational force, mass, and distance between objects.

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    Gravitational Constant (G)

    A constant value that represents the strength of the gravitational force.

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    Unit of Gravitational Constant

    The unit of measurement for the gravitational constant.

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    Meaning of Gravitational Constant

    The force of attraction between two 1 kg masses separated by 1 meter.

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    When Gravitational Force equals Gravitational Constant

    When two objects with a mass of 1 kg are separated by 1 meter.

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    Study Notes

    Gravitational Force/Gravitation

    • Gravitation is the force of attraction between any two heavenly bodies.
    • Formula: F = (G * m1 * m2) / d²
    • Unit: Newton (N)
    • Key Factors Affecting Gravitational Force:
      • Product of the masses (m1 and m2)
      • Distance between their centers (d)

    Newton's Law of Universal Gravitation

    • States that the force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

    Gravitational Constant (G)

    • G is a proportionality constant, representing the gravitational force between two bodies with mass (m1 = 1 kg, m2 = 1 kg) at a distance of (d = 1 meter).
    • Formula: G = (F * d²) / (m1 * m2)
    • Unit: Nm²/kg²
    • Value: 6.67 x 10⁻¹¹ Nm²/kg²

    Effects of Changes in Mass and Distance on Gravitational Force

    • If the mass of one body is tripled and the distance is halved, the gravitational force increases by 12 times.

    Explaining the Value of Gravitational Constant

    • The value of G (6.67 x 10⁻¹¹ Nm²/kg²) indicates that the gravitational force between two unit masses separated by one meter is 6.67 x 10⁻¹¹ Newtons.

    Force Equal to Gravitational Constant

    • The gravitational force between two bodies equals the gravitational constant when two bodies of unit mass (1 kg each) are separated by a distance of 1 meter.

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    Description

    Explore the fundamental concepts of gravitational force and Newton's Law of Universal Gravitation. This quiz covers the effects of mass and distance on gravitational attraction, along with the calculation methods using relevant formulas. Test your knowledge on key factors influencing gravitation.

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