Matter around us English Medium Free Online Test 1 Mark Questions 2020-2021

9th Standard

    Reg.No. :
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Science

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

    Part A

    10 x 1 = 10
  1. The physical state of water at 373 K is

    (a)

    Solid

    (b)

    liquid

    (c)

    vapour

    (d)

    plasma

  2. When we mix a drop of ink in water we get a__________

    (a)

    Heterogeneous Mixture

    (b)

    Homogeneous Mixture

    (c)

    Compound

    (d)

    Suspension

  3. __________ has the same properties throughout the sample

    (a)

    Pure substance

    (b)

    Mixture

    (c)

    Colloid

    (d)

    Suspension

  4. The separation of denser particles from lighter particles done by rotation at high speed is called ________

    (a)

    Filtration

    (b)

    sedimentation

    (c)

    decantation

    (d)

    centrifugation

  5. Filtration method is effective in separating _______ mixture

    (a)

    Solid-solid

    (b)

    solid-liquid

    (c)

    liquid-liquid

    (d)

    liquid-gas

  6. Gas particles can be forced to get closer and can be easily compressed.So_______increases.

    (a)

    pressure

    (b)

    volume

    (c)

    mass

    (d)

    weight

  7. Particles of matter are in constant motion as they posses______energy.

    (a)

    potential

    (b)

    kinetic

    (c)

    solar

    (d)

    wind

  8. _____ is a process by which a substance changes from the liquid to gaseous state.

    (a)

    Boiling

    (b)

    Evaporation

    (c)

    Melting

    (d)

    Condensation

  9. The direct change of state from solid to gas is called______

    (a)

    filtration

    (b)

    decantation

    (c)

    sublimation

    (d)

    evaporation

  10. A mixture can be separated into its constituents by_____

    (a)

    Physical

    (b)

    Chemical

    (c)

    Electrical

    (d)

    Magnetic

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