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Look at the figure of a ball resting on ...

Look at the figure of a ball resting on top of a wall. At A, it's energy is 50 J. It falls down, at B its PE is 30 J.

Which law helped us to calculate the energies above?

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ICSE-MODEL TEST PAPER 1-SECTION II
  1. Look at the figure of a ball resting on top of a wall. At A, it's ener...

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  2. Look at the figure of a ball resting on top of a wall. At A, it's ener...

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  3. Look at the figure of a ball resting on top of a wall. At A, it's ener...

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  4. State the two laws of reflection.

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  5. If the angle of incidence is 32^@, then what will the angle between in...

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  6. Distinguish between Regular and diffused reflection .

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  7. Name two devices that use plane mirrors.

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  8. Name secondary colours of light? How are they formed?

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  9. How is melting different from solidification?

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  10. What kind of phase change do mothballs go through when they are kept i...

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  11. The temperature of an object is 80^@F. What will be its temperature in...

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  12. Name the mode of transfer of heat in the liquid

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  13. Name the mode of transfer of heat in the vacuum

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  14. The bottom of a cooking utensil is painted black. Give the reason.

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  15. Look at the figure and answer the questions What would happen if ...

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  16. Look at the figure and answer the questions When is the ticking s...

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  17. Define the term amplitude of a wave. Write its S.I. unit.

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  18. Define amplitude of a vibrating body. What is its SI unit?

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  19. What is the frequency of a body that produces 50 vibrations in two sec...

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  20. How is a primary cell different from a secondary cell?

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