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Is the force of gravity stronger on a pi...

Is the force of gravity stronger on a piece of iron than on a piece of wood if both have the same mass?

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A piece of iron when placed on a block of wood, this makes the wood to float lower in the water. If the iron piece is suspended beneath the wood block, would it float at the same depth? Or lower or higher?

A spring of force constant 'k' is cut into two pieces such that one piece is double the length of the other. Then the long piece will have a force constant of ……………

A spring of force constant k is cut info two pieces such that one piece is double the length of the other. Then, the long plece will have a force constant of

NCERT TAMIL-GRAVITATION-Think and discuss
  1. Where does the centre of gravity of a sphere and triangular lamina lie...

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  2. Can an object have more than one centre of gravity?

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  3. Why doesn't the leaning tower of Pisa topple over?

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  4. Why must you bend forward when carrying a heavy load on your back?

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  5. Can an object move along a curved path if no force acts on it?

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  6. As a car speeds up when rounding a curve, does its centripetal acceler...

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  7. Calculate the tension in a string that whirls a 2 kg - toy in a horizo...

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  8. In figure 7, we see that the moon 'falls' around earth rather than str...

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  9. According to the equation for gravitational force, what happens to the...

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  10. If there is an attractive force between all objects, why do we not fee...

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  11. Is the force of gravity stronger on a piece of iron than on a piece of...

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  12. An apple falls because of the gravitational attraction of earth. Wha...

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  13. Give an example for the motion of an object of zero speed and with non...

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  14. Two stones are thrown into air with speeds 20 m/s, 40m/s respectively?...

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  15. When is your weight equal to mg?

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  16. Give example of when your weight is zero?

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  17. Where does the centre of gravity of a sphere and triangular lamina lie...

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  18. Can an object have more than one centre of gravity?

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  19. Why doesn't the leaning tower of Pisa topple over?

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  20. Why must you bend forward when carrying a heavy load on your back?

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