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Practice Test/Quiz or MCQ (Multiple Choice Questions) with Solutions of Chapter "Gravitation" are available for CBSE Class 9 Science and have been compiled as per the syllabus of CBSE Class 9 Science
Q. If a rock is brought from the surface of the moon,
- a)Its mass will change
- b)Its weight will change but not mass
- c)Both mass and weight will change
- d)Its mass and weight both will remain same
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Practice Test/Quiz or MCQ (Multiple Choice Questions) with Solutions o...
Becuse weight is just a force which may vari due the less mass of moon but mass is a quantiy of matter contained my any object ..thus it is
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Practice Test/Quiz or MCQ (Multiple Choice Questions) with Solutions o...
Explanation:
Gravitation is a universal force that attracts all objects towards each other. The weight of an object on the moon is less compared to its weight on Earth due to the difference in gravitational pull.
Mass vs. Weight:
- Mass is the amount of matter in an object and remains constant regardless of its location.
- Weight, on the other hand, is the force of gravity acting on an object and can vary depending on the gravitational pull of the celestial body it is on.
Impact on Rock from Moon:
- When a rock is brought from the surface of the moon to Earth, its mass will remain the same as it is an intrinsic property of the object.
- However, its weight will change because the gravitational pull on the moon is weaker than on Earth. Therefore, the rock will weigh less on the moon compared to Earth.
Correct Answer:
- The correct answer is option 'B': Its weight will change but not mass. This is because weight is dependent on the gravitational pull of the celestial body, while mass remains constant.
In conclusion, bringing a rock from the surface of the moon to Earth will not change its mass, but its weight will vary due to the difference in gravitational pull between the two celestial bodies.
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