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प्रश्न
Why is gold not weighed by a spring balance?
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उत्तर
Spring balance measures the weight of a body. The weight of a body changes from place to place on the surface of the earth due to the change in the value of acceleration due to gravity. That is why gold is not weighed by a spring balance.
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संबंधित प्रश्न
The weight of a body on Earth is 98 N, where acceleration due to gravity is 9.8 m s-2. What will be its (a) mass and (b) weight on the Moon, where acceleration due to gravity is 1.6 m s-2?
How is acceleration due to gravity-related to
- mass of a planet
- distance of body from the center of the earth?
State two important characteristics of mass.
Name the device used for measuring weight
Does a body weigh the same at all places of the Earth? Give a reason for your answer.
A man weigh 800 N at the equator. How does the weight of man change at the following place?
At poles
A man weigh 800 N at the equator. How does the weight of man change at the following place?
10 km down in a mine
How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?
Body is taken deep inside a mine.
Explain why:
A moon rocket needs to reach a certain velocity.
