7th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 8

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. __________ is a derived quantity

    (a)

    length

    (b)

    mass

    (c)

    time

    (d)

    area

  3. The slope of a velocity-time graph gives _______

    (a)

    velocity

    (b)

    distance

    (c)

    displacement

    (d)

    acceleration

  4. Oxygen, hydrogen, and sulphur are examples of which of the following?

    (a)

    Metals

    (b)

    Non-metals

    (c)

    Metalloids

    (d)

    Inert gases

  5. _____________ is a substance that is made up of three oxygen atoms chemically combined.

    (a)

    Oxygen

    (b)

    Hydrogen

    (c)

    Ozone

    (d)

    CO2

  6. 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

  7. ____________ is neutral.

    (a)

    electron

    (b)

    proton

    (c)

    neutron

    (d)

    none

  8. Climbing roots are seen in

    (a)

    Betel

    (b)

    Black pepper

    (c)

    Both of them

    (d)

    None of them

  9. The first aid is to

    (a)

    To save money

    (b)

    To prevent scars

    (c)

    To prevent the medical care

    (d)

    To relieve the pain

  10. Which software is used to create symbols

    (a)

    Photoshop

    (b)

    Illustrator

    (c)

    Vector Graphics

    (d)

    Photostory

  11. Mercury is often used in laboratory thermometers because it ___________

    (a)

    is a harmless liquid

    (b)

    is silvery in colour and is attractive in appearance

    (c)

    Expands uniformly

    (d)

    is a low cost liquid

  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 not a chemical change.

    (a)

    Dissolution of ammonia in water

    (b)

    Dissolution of carbon-di-oxide in water

    (c)

    Dissolution of oxygen in water

    (d)

    Melting of polar ice caps

  14. _______ helps in cell division

    (a)

    Endoplasmic reticulum

    (b)

    Golgi complex

    (c)

    Cnetrivole

    (d)

    Nucleus

  15. The binomial name of pigeon is _________

    (a)

    Homo sapiens

    (b)

    Rattus rattus

    (c)

    Mangifera indica

    (d)

    Columbo livia

  16. Tux Math software helps in learning the ________

    (a)

    Painting

    (b)

    Arithmetic

    (c)

    Programming

    (d)

    Graphics

  17. Reflection occurs , when the light

    (a)

    about to reach a surface

    (b)

    approaches a surface

    (c)

    passes through a surface

    (d)

    None of these

  18. The galaxy containing young and hot stars is

    (a)

    elliptical galaxy

    (b)

    irregular galaxy

    (c)

    cluster

    (d)

    spiral galaxy

  19. The lowest temperature at which a substance catch the fire is called its_______

    (a)

    Boiling point

    (b)

    Melting point

    (c)

    Critical temperature

    (d)

    Ignition temperature

  20. The Keyboard shortcut is used to cut the selected text

    (a)

    Ctrl+ c

    (b)

    Ctrl+v

    (c)

    Ctrl+x

    (d)

    Ctrl+A

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