7th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 4

7th Standard

    Reg.No. :
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Science

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

    Part A

    20 x 1 = 20
  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. 1litre = __________ cc

    (a)

    100

    (b)

    1000

    (c)

    10

    (d)

    0.1

  3. The shortest distance between the earth and the sun is called as _______ position.

    (a)

    Light year

    (b)

    normal

    (c)

    perihelion

    (d)

    aphelion

  4. Average speed of a moving object is equal to the magnitude of its average velocity when it travels.

    (a)

    in a straight line without turning back

    (b)

    in a circle

    (c)

    back and forth

    (d)

    in a zig-zag path

  5. An atom of Oxygen (O) and two atoms of hydrogen (H2) combine to form a molecule of ____________

    (a)

    hydrogen

    (b)

    ozone

    (c)

    water

    (d)

    none

  6. ____________ are generally hard and shiny elements.

    (a)

    Non-metals

    (b)

    Metals

    (c)

    Metalloids

    (d)

    None

  7. The atomic number of an atom is ________

    (a)

    Number of neutrons

    (b)

    Number of protons

    (c)

    Total number of protons and neutrons

    (d)

    Number of atoms

  8. The positively charged particle is _________

    (a)

    electron

    (b)

    proton

    (c)

    neutronnone

    (d)

    none

  9. Pollinators are

    (a)

    Wind

    (b)

    Waer

    (c)

    Insect

    (d)

    All the above

  10. The tobacco chewing causes

    (a)

    Anamia

    (b)

    Periodontitis

    (c)

    Tuberculosis

    (d)

    Pneumonia

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

    (a)

    Inkscape

    (b)

    Photo Story

    (c)

    Virtual Reality

    (d)

    Adobe Illustrator

  12. Small amounts of electrical current are measured in milliampere (mA). How many milliampere are there in 0.25 A ?

    (a)

    2.5 mA

    (b)

    25 mA

    (c)

    250 mA

    (d)

    2500 mA

  13. ________is an example of a periodic change.

    (a)

    Earthquake.

    (b)

    Formation of rainbow in sky

    (c)

    Occurrence of tides in seas.

    (d)

    Showering of rain

  14. _______ helps in cell division

    (a)

    Endoplasmic reticulum

    (b)

    Golgi complex

    (c)

    Cnetrivole

    (d)

    Nucleus

  15. Tux Math software helps in learning the ________

    (a)

    Painting

    (b)

    Arithmetic

    (c)

    Programming

    (d)

    Graphics

  16. Light is a form of________

    (a)

    matter

    (b)

    energy

    (c)

    medium

    (d)

    particle

  17. Sivarajan placed a meter stick in the playground at 7.00 am in the morning. How will the shadow of the stick at noon look in comparison to the one in the morning.

    (a)

    There will be no shadow

    (b)

    The shadow will be longer and on the opposite side as the sun

    (c)

    The shadow will be shorter and on the same side as the sun

    (d)

    The shadow will be shorter

  18. When you place a natural fibre in a flame it____________

    (a)

    melts

    (b)

    burns

    (c)

    gets nothing

    (d)

    explodes

  19. A drug effective in the treatment of pneumonia, and bronchitis, is _________

    (a)

    Streptomycin

    (b)

    Chloramphenicol

    (c)

    Penicillin

    (d)

    Sulphaguanidine

  20. _______is the daily essential product which is obtained from cattle.

    (a)

    Egg

    (b)

    Milk

    (c)

    Both of them

    (d)

    None of them

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