seventh standard science chapter 1 and 2 model question paper for new syllabus state board english medium

7th Standard

    Reg.No. :
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Science

Use blue pen only
Time : 01:30:00 Hrs
Total Marks : 70

    Part - A

    Answer each of the following questions

    2 x 1 = 2
  1. Two spheres have equal mass and volume in the ratio 2:1. The ratio of their density is ________.

    (a)

    1:2

    (b)

    2:1

    (c)

    4:1

    (d)

    1:4

  2. 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

  3. Part - B

    Answer each of the following questions

    3 x 1 = 3
  4. Density of mercury is ________.

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    13,600 kg/m3

  5. One astronomical unit is equal to________.

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    1.496 x 1011 m

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

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    neutral

  7. Part - C

    Answer each of the following questions

    2 x 1 = 2
  8. The region covered by the boundary of the plane figure is called its volume

    (a) True
    (b) False
  9. Water is denser than kerosene.

    (a) True
    (b) False
  10. Part - D

    Answer each of the following questions

    5 x 1 = 5
  11. Distance

  12. (1)

    amount of a substance

  13. Density

  14. (2)

    light year

  15. Length

  16. (3)

    Larger base area

  17. Mass

  18. (4)

    rope

  19. Stability

  20. (5)

    kg / m3

    Part - E

    Answer each of the following questions

    1 x 1 = 1
  21. Copper, Aluminium, Gold, Iron

  22. Part - F

    Answer each of the following questions

    2 x 2 = 4
  23. Water: kerosene :: ________ : Aluminium

  24. velocity : metre/ second : : Acceleration : ________

  25. Part - G

    Answer each of the following questions

    1 x 2 = 2
  26. Assertion: Iron ball sinks in water.
    Reason: water is denser than iron.
    a. Both assertion and reason are true and reason is the correct explanation of assertion.
    b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
    c. Assertion is true but reason is false.
    d. Assertion is false but reason is true.

  27. Part - H

    Answer each of the following questions

    3 x 5 = 15
  28. A circular disc has a radius 10 cm. Find the area of the disc in m2. (Use π = 3.14).

  29. A sphere of radius 1cm is made from silver. If the mass of the sphere is 33g, find the density of silver. (Take π = 3.14)

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

  31. Part - I

    Answer each of the following questions

    1 x 2 = 2

  32. CLUES – ACROSS
    1. SI unit of temperature
    2. A derived quantity
    3. Mass per unit volume
    4. Maximum volume of liquid a container can hold
    CLUES – DOWN
    a. A derived quantity
    b. SI unit of volume
    c. A liquid denser than iron
    d. A unit of length used to measure very long distances

  33. Part - J

    Answer each of the following questions

    1 x 2 = 2
  34. S.No First Move Seconde Move Distance (m) Displacement
    1.  Move 4 meters east  Move 2 meters west  6  2 m east
    2.  Move 4 meters north  Move 2 meters south    
    3.  Move 2 meters east  Move 4 meters west    
    4.  Move 5 meters east  Move 5 meters west    
    5.  Move 5 meters south  Move 2 meters north    
    6.  Move 10 meters west  Move 3 meters east    

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  35. Part - K

    Answer each of the following questions

    5 x 2 = 10
  36. Give the formula to find the density of objects.

  37. What is the area of 10 squares each having side of 1 m?

  38. Find the area of the following regular shaped figures: (Take \(\pi\) = 22/7)
    (a) A rectangle whose length is 12 m and breadth is 4 m.
    (b) A circle whose radius is 7 m.
    (c) A triangle whose base is 6 m and height is 8 m.

  39. Find the volume of (Take \(\pi\) = 22/7)
    i. a cube whose side is 3 cm.
    ii. a cylinder whose radius is 3 m and height is 7 m.

  40. Correct your friend who says “The acceleration gives the idea of how fast the position changes”.

  41. Part - L

    Answer each of the following questions

    4 x 3 = 12
  42. What are derived quantities?

  43. A sphere is made from copper whose mass is 3000 kg. If the density of copper is 8900 kg/m, find the volume of the sphere.

  44. Distinguish between speed and velocity.

  45. What do you mean by constant acceleration?

  46. Part - M

    Answer each of the following questions

    2 x 5 = 10
  47. How will you determine the density of a stone using a measuring jar?

  48. Explain the types of stability with suitable examples.

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