physics-9-chapter-4-turning-effect-of-force-3


1. According to the law of gravitation, which of the following formula is correct about the gravitational force of attraction F?




2. The gravitational force between two identical lead spheres kept at 1 m apart is 0.006673 N. Find their masses?




3. Which of the following proportionality constant is used in the formula of the gravitational force of attraction F?




4. What is ‘G’ in the formula: F = [G (m1 x m2)] / d2?




5. What is‘d’ in the formula: F = [G (m1 x m2)] / d2?




6. What is ‘G’ in the formula: F = [G (m1 x m2)] / d2 called?




7. By which of the following symbol, universal constant of gravitation is represented?




8. The value of universal constant of gravitation is......................?




9. What is the value of universal constant of gravitation?




10. What is the SI unit of universal constant of gravitation?




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