NEET Physics: Gravitation — MCQ Test 14

Q6. Four \( 8 \, \text{kg} \) masses form a square of side \( 8 \, \text{m} \). What is the potential energy of the system? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q7. What is the minimum speed to escape from \( 7 R_E \) from Earth’s center? (\( g = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m} \))

Q8. A \( 5 \, \text{kg} \) mass is moved from \( 5 R_E \) to \( 10 R_E \) 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 gravitational potential energy of a \( 2 \, \text{kg} \) mass at a height of \( 6.4 \times 10^6 \, \text{m} \) above Earth’s surface? (\( M_E = 6 \times 10^{24} \, \text{kg}, R_E = 6.4 \times 10^6 \, \text{m}, G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

Q10. Two masses \( 3 \, \text{kg} \) and \( 6 \, \text{kg} \) are \( 6 \, \text{m} \) apart. What is the gravitational potential at a point \( 2 \, \text{m} \) from the \( 3 \, \text{kg} \) mass on the line joining them? (\( G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2 \))

NEET Physics — Gravitation

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What is the minimum speed to escape from 8RE8 R_E from Earth’s center? (g=9.8 m/s2,RE=6.4×106 mg = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m})

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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
Easy
10
Medium
0
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Key concepts covered in this specific test include Satellite, Potential, and Gravitational.

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.

What is the minimum speed to escape from 8RE8 R_E from Earth’s center? (g=9.8 m/s2,RE=6.4×106 mg = 9.8 \, \text{m/s}^2, R_E = 6.4 \times 10^6 \, \text{m})

  • A.

    3.9 km/s

  • B.

    4.0 km/s

  • C.

    4.1 km/s

  • D.

    4.2 km/s

Q2.

What is the kinetic energy of a 300 kg300 \, \text{kg} satellite at 5RE5 R_E from Earth’s center? (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.

    1.8 × 10⁹ J

  • B.

    1.9 × 10⁹ J

  • C.

    2.0 × 10⁹ J

  • D.

    2.1 × 10⁹ J

Q3.

What is the escape speed from a planet with mass 4.5×1024 kg4.5 \times 10^{24} \, \text{kg} and radius 6×106 m6 \times 10^6 \, \text{m}? (G=6.67×10−11 N m2/kg2G = 6.67 \times 10^{-11} \, \text{N m}^2/\text{kg}^2)

  • A.

    9.8 km/s

  • B.

    9.9 km/s

  • C.

    10.0 km/s

  • D.

    10.1 km/s

Q4.

A satellite near Earth has a period of 82 minutes. What is its period at h=9REh = 9 R_E? (RE=6.4×106 mR_E = 6.4 \times 10^6 \, \text{m})

  • A.

    2580 min

  • B.

    2590 min

  • C.

    2600 min

  • D.

    2610 min

Q5.

Why is the value of gg maximum at Earth’s surface?

  • A.

    All mass contributes at the surface

  • B.

    Earth’s core increases it

  • C.

    Atmosphere enhances it

  • D.

    It is zero at the surface

+ 5 more questions in the actual test

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