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7th Standard Science - Force and Motion Model Question Paper Sep-25 , 2019

Force and Motion 

7th Standard Science - Force and Motion Model Question Paper

Force and Motion Model Question Paper

7th Standard

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Science

Time : 01:30:00 Hrs
Total Marks : 50
    3 x 1 = 3

  1. A particle is moving in a circular path of radius r. The displacement after half a circle would be _______.

    (a)

    Zero

    (b)

    R

    (c)

    2 r

    (d)

    r / 2

  2. Distance travelled by a body in a given time

    (a)

    is always positive

    (b)

    can be zero or positive

    (c)

    is always negative

    (d)

    either (a) or (c)

  3. The slope of a velocity-time graph gives _______

    (a)

    velocity

    (b)

    distance

    (c)

    displacement

    (d)

    acceleration

    4. 5 x 1 = 5

  4. The shortest distance between two places is_______.

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    displacement

  5. If the velocity of an object increases with respect to time, then the object is said to be in_______ acceleration.

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    positive

  6. In _______ equilibrium its centre of gravity remains at the same height when it is displaced.

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    neutral

  7. The SI unit of displacement is _____________

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    metre (m)

  8. Distance is a ___________ quantity.

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    scalar

    9. 5 x 1 = 5

  9. Displacement

    10. (1)

    Larger base area

  10. Speed of ship

    11. (2)

    Equal distances covered in equal intervals of time

  11. Stability

    12. (3)

    Not possible.

  12. Uniform motion.

    13. (4)

    Knot

  13. The velocity-time graph is a circle

    14. (5)

    Metre
    1 x 5 = 5

  14. A car started from rest and travelling with velocity of 20 m /s in 10 s. What is its acceleration?

    15. 5 x 2 = 10

  15. All objects having uniform speed need not have uniform velocity. Describe with the help of examples.

  16. Give one example where the displacement is zero but the distance travelled is not zero

  17. Give some examples for vector quantity

  18. Give one example for uniform acceleration

  19. What are three types of stability of an object?

    20. 4 x 3 = 12

  20. Distinguish between speed and velocity.

  21. What is centre of gravity ?

  22. Define speed Mention its formula and unit.

  23. What is stability? Mention its types.

    24. 2 x 5 = 10

  24. Explain the types of stability with suitable examples.

  25. Write the differences between distance and displacement

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