Term 1 Model One Marks Questions

7th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 25
    10 x 1 = 10
  1. Which of the following is a derived unit?

    (a)

    mass

    (b)

    time

    (c)

    area

    (d)

    length

  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. What is one way you might increase the stability of an object?

    (a)

    lower the centre of gravity

    (b)

    raise the centre of gravity

    (c)

    increase the height of the object

    (d)

    shorten the base of the object

  4. The graphite refill used is pencil is made of element called ___________

    (a)

    graphit

    (b)

    carbon

    (c)

    silicon

    (d)

    sodium

  5. The subatomic particle revolve around the nucleus is _______.

    (a)

    Atom

    (b)

    Neutron

    (c)

    Electron

    (d)

    Proton

  6. Electron was discovered by ___________

    (a)

    J.J. Thomson

    (b)

    Chadwick

    (c)

    Goldstein

    (d)

    Delton

  7. ____________ do not produce spores.

    (a)

    Algae

    (b)

    Fungi

    (c)

    Datura

    (d)

    Ferns

  8. Which technology shows the computer-drawn pictures as real picture.

    (a)

    Inkscape

    (b)

    Photo Story

    (c)

    Virtual Reality

    (d)

    Adobe Illustrator

  9. _____________ is a good example for "Visual communication Device".

    (a)

    Computer

    (b)

    Cinema

    (c)

    Balckboard

    (d)

    Audio - visuals

  10. We can collect our notes in ___________ application.

    (a)

    Notepad

    (b)

    Notebook

    (c)

    'paint' app

    (d)

    scratch

  11. 5 x 1 = 5
  12. The materials with lower density are called _________

    ()

    rarer

  13. Elements are the___________ form of pure substances.

    ()

    simplest

  14. The first letter of a symbol of an element is always written as a _______________ letter and the second letter as a ______________ letter

    ()

    capital, small

  15. If the valency of carbon is 4 and that of hydrogen is 1, then the molecular formula of methane is___________.

    ()

    C4

  16. ____________ compared an atom to a watermelon.

    ()

    J.J. Thomson

  17. 5 x 1 = 5
  18. A substance which contains less number of molecules per unit volume is said to be denser.

    (a) True
    (b) False
  19. Metals are usually solids or gases at room temperature.

    (a) True
    (b) False
  20. Sodium chloride is used as table salt and for flavoring and preserving food.

    (a) True
    (b) False
  21. Latin name of Copper is cuprum.

    (a) True
    (b) False
  22. The transfer of pollen to the stigma is known as pollination.

    (a) True
    (b) False
  23. 5 x 1 = 5
  24. Area

  25. (1)

    smoking

  26. Area

  27. (2)

    plane figures

  28. Circle

  29. (3)

    hard and shiny

  30. Metals

  31. (4)

    π x r2

  32. Heart attack

  33. (5)

    m2

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