Class 8 Some Natural Phenomena CBSE Questions & Answers

Class 8 · Some Natural Phenomena

This is Science Class 8 Some Natural Phenomena CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Rapid expansion of air due to lightening cause
  • A
    Flood
  • B
    All of these
  • C
    Thunder
    Correct
  • D
    Cyclone
2
During lightening
  • A
    Heavy rain occurs only
  • B
    All of these
  • C
    Loud sound is produced only
  • D
    Strikes of light is formed
    Correct
3
Sudden occurrence of light due to friction of clouds is called
  • A
    Cyclone
  • B
    Flood
  • C
    Lightening
    Correct
  • D
    Storm
4
Thunderstorm occurs more frequently in
  • A
    Equator
  • B
    Meridians
  • C
    Poles
  • D
    Tropical areas
    Correct
5
Unlike charges
  • A
    Repel in same direction
  • B
    Repels each other
  • C
    Attract in same direction
  • D
    Attract each other
    Correct
6
Pressure difference at two localities is created by
  • A
    Moisture difference
  • B
    Unequal heating
    Correct
  • C
    Latitude difference
  • D
    Altitude difference
7
Lightening occurs when negatively changed clouds come in contact of
  • A
    Positively charged clouds
    Correct
  • B
    High energy containing clouds
  • C
    Negatively charged clouds
  • D
    Neutral clouds
8
What makes the balloon inflated when placed in hot water?
  • A
    Increase temperature makes the balloon lighter
  • B
    Increase temperature increase the pressure
    Correct
  • C
    Increased temperature makes the balloon heavy
  • D
    Increased temperature makes the balloon softer
9
Current electricity is
  • A
    Charge due to friction
  • B
    Charges that is static
  • C
    Charge that moves
    Correct
  • D
    Charge that is temporary
10
Wind direction is found by using
  • A
    Wind Vane
    Correct
  • B
    Thermometer
  • C
    Barometer
  • D
    Anemometer
11
If a storm is accompanied by lightening, we should not take shelter under a high tree because
  • A
    It may fall during storm
  • B
    It may contain other animals
  • C
    It has more chance of falling thunder
    Correct
  • D
    It has more rain falling
12
Atmosphere around the earth maintains its
  • A
    Pressure
  • B
    Shape
  • C
    Density
  • D
    Temperature
    Correct
13
When plastic comb is rubbed with dry hair, it acquire
  • A
    Stickiness
  • B
    Charge
    Correct
  • C
    Heat
  • D
    Black colour
14
For escape of hot air room has
  • A
    Windows
  • B
    Doors
  • C
    High walls
  • D
    Ventilators
    Correct
15
Wind generally blow area of
  • A
    Low pressure to high pressure
  • B
    High pressure to low pressure
    Correct
  • C
    High pressure to moderate pressure
  • D
    Low pressure to moderate temperature