NEET Physics: Gravitation — MCQ Test 17

Q6. How much energy is required to move a \( 100 \, \text{kg} \) satellite from \( 4 R_E \) to \( 8 R_E \) from Earth’s center? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q7. A \( 900 \, \text{kg} \) satellite orbits Earth at \( 14 R_E \) from the center. What is its total energy? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q8. A \( 7 \, \text{kg} \) mass is moved from \( 7 R_E \) to \( 14 R_E \) from Earth’s center. What is the change in potential energy? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q9. What is the escape speed from a planet with mass \( 3.6 \times 10^{24} \, \text{kg} \) and radius \( 5 \times 10^6 \, \text{m} \)? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q10. Energy required to move a \( 300 \, \text{kg} \) satellite from \( 3 R_E \) to \( 6 R_E \) is? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

NEET Physics — Gravitation

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Three masses of 12 kg12 \, \text{kg} each form an equilateral triangle with side 9 m9 \, \text{m}. What is the net force on one mass? (G=6.67×10−11 N m2/kg2G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2)

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Gravitation. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

0
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Medium
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Key concepts covered in this specific test include Equilateral, Triangle, Satellite, Gravitational, Spherical, and Equivalent.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1.

Three masses of 12 kg12 \, \text{kg} each form an equilateral triangle with side 9 m9 \, \text{m}. What is the net force on one mass? (G=6.67×10−11 N m2/kg2G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2)

  • A.

    1.9 × 10⁻¹⁰ N

  • B.

    2.0 × 10⁻¹⁰ N

  • C.

    2.1 × 10⁻¹⁰ N

  • D.

    2.2 × 10⁻¹⁰ N

Q2.

A satellite of mass 500 kg500 \, \text{kg} orbits Earth at 2RE2 R_E from the center. What is its kinetic energy? (ME=6×1024 kg,RE=6.4×106 m,G=6.67×10−11 N m2/kg2M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2)

  • A.

    7.0 × 10⁹ J

  • B.

    7.5 × 10⁹ J

  • C.

    7.8 × 10⁹ J

  • D.

    8.0 × 10⁹ J

Q3.

The time period of a satellite near Earth’s surface is 84 minutes. What is its time period at a height h=REh = R_E? (RE=6.4×106 mR_E = 6.4 \times 10^6 \, \text{m})

  • A.

    200 min

  • B.

    237 min

  • C.

    250 min

  • D.

    270 min

Q4.

Why is the gravitational force on a point mass outside a hollow spherical shell equivalent to that of a point mass at its center?

  • A.

    The shell has no thickness

  • B.

    Symmetry causes forces to cancel radially

  • C.

    Mass is distributed evenly at the center

  • D.

    The force is zero outside

Q5.

Why does the gravitational potential energy approach zero as the distance between two masses increases?

  • A.

    The force becomes repulsive

  • B.

    The force decreases with distance

  • C.

    It is defined as zero at infinity

  • D.

    Kinetic energy increases

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