Gravitation Quiz

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  • 1/10 Questions

    What is the unit gravitational force ?

    • Newton
    • Kelvin
    • Kg
    • Metre
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About This Quiz

This Gravitation quiz assesses understanding of gravitational concepts, including the nature of gravitational forces, their dependence on mass, and gravitational acceleration. It is designed for learners to evaluate their knowledge of fundamental physics principles, particularly in gravitational physics.

Gravitation Quiz - Quiz

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  • 2. 

    What quantity is gravitational force ?

    • Scalar quantity

    • Vector quantity

    • A and B both

    • None

    Correct Answer
    A. Vector quantity
    Explanation
    Gravitational force is a vector quantity because it has both magnitude and direction. The magnitude of gravitational force is determined by the masses of the objects involved, and the direction is always towards the center of mass of the objects. This means that gravitational force can be represented by an arrow, indicating both the strength and direction of the force. Therefore, the correct answer is "Vector quantity".

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  • 3. 

    Which one of the following is true ?

    • Gravitational force is indirectly proportional to masses of two objects

    • Gravitational force is directly proportional to square of distance between two bodies

    • Gravitational force is directly proportional to masses of two bodies

    • None

    • A , b , c all

    Correct Answer
    A. Gravitational force is directly proportional to masses of two bodies
    Explanation
    The correct answer is that gravitational force is directly proportional to the masses of two bodies. This means that as the masses of the two objects increase, the gravitational force between them also increases. The greater the mass, the stronger the gravitational force.

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  • 4. 

    Unit of G is ?

    • N m2 kg2

    • N m/kg

    • N m2 / kg2

    • N kg2/m2

    Correct Answer
    A. N m2 / kg2
    Explanation
    The unit of G is N m2 / kg2 because G represents the gravitational constant, which is a physical constant that is used to calculate the force of gravity between two objects. The unit N represents Newton, which is the unit of force. The unit m2 represents square meters, which is the unit of area. The unit kg2 represents kilograms squared, which is the unit of mass squared. Therefore, the correct unit for G is N m2 / kg2.

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  • 5. 

    Where is the value of Gravitational acceleration is minimum ?

    • Alps - Europe

    • Equator

    • Poles

    • Tropic of cancer

    • Tropic of capricorn

    Correct Answer
    A. Equator
    Explanation
    The value of gravitational acceleration is minimum at the Equator. This is because the Earth is not a perfect sphere, but rather an oblate spheroid, with the equatorial diameter being larger than the polar diameter. As a result, the centrifugal force due to the Earth's rotation is greater at the equator, counteracting some of the gravitational force. Therefore, the net gravitational acceleration is slightly lower at the equator compared to the poles or other latitudes.

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  • 6. 

    What is the value of Gravitational acceleration on the surface of the moon ?

    • 9.8 m/s2

    • 33 cm/s2

    • 1.608 m/s2

    • 15 m/s2

    Correct Answer
    A. 1.608 m/s2
    Explanation
    The value of gravitational acceleration on the surface of the moon is 1.608 m/s2. This value is significantly lower than the gravitational acceleration on Earth, which is 9.8 m/s2. The moon has less mass than Earth, so its gravitational pull is weaker. This means that objects on the moon weigh less and fall more slowly compared to Earth.

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  • 7. 

    What is the weight of an object  on earths surfacewhich weighs 60 N on moon's surface ?

    • 360 N

    • 10 N

    • 60 kg

    • 2 kg

    Correct Answer
    A. 360 N
    Explanation
    The weight of an object on Earth's surface is greater than its weight on the moon's surface due to the difference in gravitational force between the two celestial bodies. Since the object weighs 60 N on the moon, it must weigh more on Earth. Therefore, the correct answer is 360 N.

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  • 8. 

    Weight depends on which two factors ?

    • Mass and energy

    • Mass and gravitation constant

    • Mass and Gravitational acceleration

    • Above a, b,c

    • None

    Correct Answer
    A. Mass and Gravitational acceleration
    Explanation
    The weight of an object depends on two factors: mass and gravitational acceleration. Mass refers to the amount of matter in an object, while gravitational acceleration refers to the acceleration due to gravity. The weight of an object is calculated by multiplying its mass by the gravitational acceleration. Therefore, both mass and gravitational acceleration play a crucial role in determining the weight of an object.

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  • 9. 

    What will be the mass of the object on moon surface whose mass is 60 kg on earths surface

    • 60 kg

    • 10 kg

    • 60 N

    • 10 N

    Correct Answer
    A. 60 kg
    Explanation
    The mass of an object remains the same regardless of its location. Therefore, if the mass of the object is 60 kg on Earth's surface, it will still be 60 kg on the moon's surface. The force acting on the object may change due to the difference in gravitational pull, but the mass itself remains constant.

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  • 10. 

    Gravitational acceleration does not depend on ?

    • Mass of the object

    • Weight of the object

    • Gravitation constant

    • Distance from earth surface

    Correct Answer
    A. Mass of the object
    Explanation
    Gravitational acceleration does not depend on the mass of the object. This is because gravitational acceleration is a constant value for a given location and is independent of the mass of the object experiencing the gravitational force. The force of gravity experienced by an object depends on its mass, but the acceleration due to gravity remains the same. This means that objects of different masses will fall at the same rate in a vacuum near the Earth's surface.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 12, 2010
    Quiz Created by
    Jenil3988
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