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Karnataka Police Constable Gravitation — practice questions

Explore 3 free Gravitation questions in Karnataka Police Constable Science. Open each question or exercise to read its content, reference answers and available explanation.

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Gravitation questions and exercises with answers

Showing questions 1–3 of 3.

Which of the following does NOT affect the value of acceleration due to gravity?Read the answer and worked solution →An object has a mass of 20 kg. What is its weight on Earth? [g = 9.8 ms⁻²]Read the answer and worked solution →The approximate mass of the Earth is:Read the answer and worked solution →

Worked practice questions

Which of the following does NOT affect the value of acceleration due to gravity?

  1. Depth
  2. Mass of the body
  3. Altitude
  4. Shape of the earth
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Correct answer: B. Mass of the body

1. The value of g varies with depth, altitude and the earth's shape. 2. From g = GM/R², g depends on the earth's mass and radius, not on the mass of the falling body. 3. Hence the mass of the body does not affect g. _Source: RRB Group D CEN-02/2018 PYQ, Q.41._

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An object has a mass of 20 kg. What is its weight on Earth? [g = 9.8 ms⁻²]

  1. 19.6 N
  2. 196 N
  3. −196 N
  4. 1960 N
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Correct answer: B. 196 N

1. Weight W = mass × g. 2. W = 20 × 9.8. 3. = 196 N. _Source: RRB Group D CEN-02/2018 PYQ, Q.47._

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The approximate mass of the Earth is:

  1. 6 x 10^-23 kg
  2. 6 x 10^23 kg
  3. 6 x 10^-24 kg
  4. 6 x 10^24 kg
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Correct answer: D. 6 x 10^24 kg

1. The mass of the Earth is a standard physical constant. 2. Its accepted value is about 5.97 x 10^24 kg. 3. Rounded, this is 6 x 10^24 kg. _Source: RRB Group D CEN-02/2018 PYQ, Q.5._

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