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Important points to remember...

Important points to remember

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(i) The strength of the gravitational field decreases as we move away from the mass M.
(ii) The "field" concept was introduced as a mathematical tool to calculate gravitational interaction.
(iii) The unit of gravitational field is Newton per kilogram (N/kg) or ms^(-2).
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PREMIERS PUBLISHERS-GRAVITATION-OTHER IMPORTANT QUESTION & ANSWERS (SHORT ANSWER QUESTIONS)
  1. On what factors does escape speed depends on?

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  2. Does the escape speed depends on the direction in which object is thro...

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  3. Important points to remember

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  4. What is meant by superposition of gravitational field?

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  5. State the condition in which gravitational potential energy is said to...

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  6. Why hydrogen an helium are not found in abudance on the Earth's atmosp...

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  7. Derive the expression for gravitational potential energy.

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  8. Why do we have seasons on Earth?

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  9. Define 'G'. What are the units and dimensions of 'G' ?

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  10. Two satellites are at different heights from the surface of earth. Whi...

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  11. What is the gravitational field strength of a planet where the weight ...

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  12. A satellite does not need any fuel to move around the earth. Give reas...

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  13. A comet orbits the sun is highly elliptical orbit. Does a comet has a ...

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  14. What is 'retrograde motion' of planets?

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  15. On what factors does escape speed depends on?

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  16. Does the escape speed depends on the direction in which object is thro...

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  17. State the important points to be remembered in gravitational field.

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  18. What is meant by superposition of gravitational field?

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  19. State the condition in which gravitational potential energy is said to...

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  20. Why hydrogen an helium are not found in abudance on the Earth's atmosp...

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