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
Instrument to measure waves of the earthquake is called
  • A
    Seismograph
    Correct
  • B
    Wave meter
  • C
    Galvanometer
  • D
    Richter scale
2
Electric current is
  • A
    Resting charge
  • B
    Heating charge
  • C
    Melting charge
  • D
    Moving charge
    Correct
3
Which of the following is not a insulator?
  • A
    Glass
  • B
    Copper
    Correct
  • C
    Air
  • D
    Wood
4
Which of the following cannot be charged easily by rubbing?
  • A
    A plastic scale
  • B
    A copper rod
    Correct
  • C
    A woollen cloth
  • D
    An inflated balloon
5
Which of the following is not under seismic zones?
  • A
    Rajasthan
  • B
    Western Punjab
    Correct
  • C
    Rann of Kutch
  • D
    Indo-Gangatic plain
6
When a charged body is touched with hand than
  • A
    Charged body become more charged
  • B
    Charged body becomes opposite charge
  • C
    Charged body loses its charge
    Correct
  • D
    None of these
7
During thunderstorm we should hide under
  • A
    Longer tree
  • B
    Eucalyptus tree
  • C
    Shorter tree
    Correct
  • D
    Palm tree
8
Earthquakes are caused by the
  • A
    Tilting of earth axis
  • B
    Movement of water inside
  • C
    High pollution level
  • D
    Movement of earth plates
    Correct
9
Wind is
  • A
    Cold air
  • B
    Cold air
  • C
    Hot air
  • D
    Moving air
    Correct
10
Static charges can be produced by
  • A
    Beating
  • B
    Heating
  • C
    Rubbing
    Correct
  • D
    Touching
11
Benjamin Franklin discovered that
  • A
    Effects of flood on life of man
  • B
    Wind blows from high to low pressure.
  • C
    Causes of earthquake
  • D
    Building can be protected by using lightening rod at top of building.
    Correct
12
Reduced air pressure cause
  • A
    Bright sun light
  • B
    Decreased wind speed
  • C
    Heavy rain
  • D
    Increased wind speed
    Correct
13
Violent storms accompanied by high wind speed is called
  • A
    Cloud burst
  • B
    Storm
  • C
    Hurricane
  • D
    Cyclone
    Correct
14
Warm air is _________ than cold air.
  • A
    Lighter
    Correct
  • B
    Neither lighter nor heavier
  • C
    Same
  • D
    Heavier
15
Air expands on
  • A
    Cooling
  • B
    Condensing
  • C
    Heating
    Correct
  • D
    Freezing