9th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 5

9th Standard

    Reg.No. :
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Science

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

    Part A

    20 x 1 = 20
  1. _________is the unit distance used to measure astronomical objects outside the solar system.

    (a)

    Parsec

    (b)

    km

    (c)

    cm

    (d)

    litre

  2. The area under velocity – time graph represents

    (a)

    velocity of the moving object

    (b)

    displacement covered by the moving object

    (c)

    speed of the moving object

    (d)

    acceleration of the moving object

  3. The field of view * is maximum for ________ 

    (a)

    plane mirror

    (b)

    concave mirror

    (c)

    convex mirror

  4. A virtual and equal sized image is formed by ___________________mirrors.

    (a)

    convex

    (b)

    plane

    (c)

    convex

    (d)

    spherical

  5. Change in the number of neutrons in an atom changes it to

    (a)

    an ion

    (b)

    an isotope

    (c)

    an isobar

    (d)

    another element

  6. James Chadwick observed when was exposed to a particle, particles with about the same mass as protons were emitted.

    (a)

    Boron

    (b)

    Carbon

    (c)

    Helium

    (d)

    Beryllium

  7. Identify the false statement

    (a)

    Photosynthesis takes place in mitochondria

    (b)

    Photo means "light "

    (c)

    The end product of photo synthesis is glucose

    (d)

    Chlorophyll is necessary for photosynthesis.

  8. Crop, gizzard and air sacs are seen in

    (a)

    Fish

    (b)

    Frog

    (c)

    Bird

    (d)

    Bat

  9. The blood vascular system of Arthropoda is_______.

    (a)

    Open type

    (b)

    Closed type

    (c)

    Partially open type

    (d)

    Partially closed type

  10. Resistance of a wire depends on

    (a)

    temperature

    (b)

    geometry

    (c)

    nature of material

    (d)

    all the above

  11. The increasing order of the energy of subshells is

    (a)

    s>p>d>f

    (b)

    s<p<d<f

    (c)

    s<p<f<d

    (d)

    p<s<d<f

  12. Elements with stable electronic configurations have eight electrons in their valence shell. They are__________

    (a)

    Halogens

    (b)

    Metals

    (c)

    Noble gases

    (d)

    non metals

  13. The hydrated salt of copper sulphate has______colour

    (a)

    Red

    (b)

    White

    (c)

    Blue

    (d)

    White

  14. Which of the following is not found in a neuron?

    (a)

    Sarcolemma

    (b)

    Dendrite

    (c)

    Neurolemma

    (d)

    Axon

  15. Stomach of man mainly digests

    (a)

    carbohydrates

    (b)

    proteins

    (c)

    fat

    (d)

    sucrose

  16. If the speed of a wave is 340 m s-1 and its frequency is 1700 Hz, then wavelength λ for this wave in cm will be

    (a)

    34

    (b)

    20

    (c)

    15

    (d)

    0.2

  17. Who proposed the heliocentric model of the universe?

    (a)

    Tycho Brahe

    (b)

    Nicolaus Copernicus

    (c)

    Ptolemy

    (d)

    Archimedes

  18. One Nanometre is

    (a)

    10-7 metre

    (b)

    10-8 metre

    (c)

    10-6 metre

    (d)

    10-9 metre

  19. Binomial name of Nilavembu is

    (a)

    Leucas aspera

    (b)

    Andrographis paniculata

    (c)

    Crotolaria juncea

    (d)

    Cassia fistula

  20. Find out the part that is not found in CPU?

    (a)

    Mother Board

    (b)

    SMPS

    (c)

    RAM

    (d)

    Mouse

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