10th Standard Science English Medium Free Online Test Creative 1 Mark Questions with Answer Key Part - 2

10th Standard

    Reg.No. :
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Science

Time : 00:20:00 Hrs
Total Marks : 20

    Part A

    20 x 1 = 20
  1. A luggage is usually tied with a rope on the roof of the buses due to

    (a)

    inertia of motion

    (b)

    inertia of direction

    (c)

    inertia of rest

    (d)

    momentum

  2. What would happen, if the force of gravity disappears suddenly on earth?

    (a)

    All objectswould move in a rapid whirl wing

    (b)

    All object will float

    (c)

    not possible

    (d)

    cannot say

  3. Convex lens produces a ______ beam of light.

    (a)

    convergent

    (b)

    divergent

    (c)

    scattered

    (d)

    dispersed

  4. The reciprocal of the focal length of the lens is

    (a)

    Magnification

    (b)

    Power

    (c)

    Principal focus

    (d)

    None

  5. In compound microscope, as compare to eye piece, objective lens has _____ focal length.

    (a)

    -ve focal length

    (b)

    Zero

    (c)

    Small

    (d)

    Large

  6. Increase in area due to heating is called

    (a)

    Linear expansion

    (b)

    Superficial expansion

    (c)

    Cubical expansion

    (d)

    real expansion

  7. The relation between potential difference (V) and current (I) was discovered by:

    (a)

    Volt

    (b)

    Ohm

    (c)

    Newton

    (d)

    Ampere

  8. Why are copper wires used as connecting wires?

    (a)

    Low resistivity

    (b)

    Low conductivit

    (c)

    High Resistivity

    (d)

    Both A and B

  9. The velocity of sound is affected by

    (a)

    temperature

    (b)

    density

    (c)

    pressure

    (d)

    all the above

  10. The main source of stellar energy is
    (i) fission reactors
    (ii) fusion reaction
    (iii) chemical reaction
    (iv) thermonuclear reactions

    (a)

    (i) is correct

    (b)

    (i) & (ii) are correct

    (c)

    (i) & (iv) are correct

    (d)

    (ii) & (iv) are correct

  11. A good ________ shows down neutrons by elastic collisions and it does not remove them by absorption.

    (a)

    fuel

    (b)

    moderator

    (c)

    coolant

    (d)

    control rod

  12. An atom which has a mass number of 14 and 8 neutrons is an

    (a)

    isotope of nitrogen

    (b)

    isotope of oxygen

    (c)

    isotope of carbon

    (d)

    isobar of carbon

  13. The mass of a molecule of water is:

    (a)

    3 x 10-26kg

    (b)

    3 x 10-23kg

    (c)

    1.5 X 10-26kg

    (d)

    2.5 x 10-26kg

  14. The chief ore of copper is ________

    (a)

    Copper pyrites

    (b)

    Copper glance

    (c)

    Cyprite

    (d)

    Rupy copper

  15. The product formed when calcium oxide reacts with water is

    (a)

    Slaked lime

    (b)

    Carbon dioxide

    (c)

    Calcium oxide

    (d)

    Oxygen gas

  16. Transpiration does not___________

    (a)

    help in ascent of sap

    (b)

    help in keeping cells turgid

    (c)

    helps in cooling leaves

    (d)

    helps in translocation

  17. ______ is a growth inhibitor.

    (a)

    Auxin

    (b)

    GA

    (c)

    Cytokinin

    (d)

    Ethylene

  18. Approximately_________ of the pollination done by the insects is carried by honey bees

    (a)

    70%

    (b)

    80%

    (c)

    50%

    (d)

    60%

  19. Most _________ and wood fossils are petrified.

    (a)

    bone

    (b)

    soils

    (c)

    sands

    (d)

    rocks

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