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Some Natural Phenomena — Class 8 CBSE Science MCQs with Solutions
Free Class 8 CBSE Science Some Natural Phenomena MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
Like charges:
A. attract each other
B. repel each other ✓ Correct
C. have no effect
D. become neutral
Solution: Like charges repel.
Q2 — easy
The device used to protect tall buildings from lightning is a:
A. fuse
B. lightning conductor ✓ Correct
C. switch
D. transformer
Solution: It safely carries charge to the ground.
Q3 — easy
The instrument used to detect charge on an object is an:
A. ammeter
B. electroscope ✓ Correct
C. barometer
D. thermometer
Solution: An electroscope detects electric charge.
Q4 — easy
The sudden shaking of the Earth's surface is called an:
A. eclipse
B. earthquake ✓ Correct
C. echo
D. eruption
Solution: Earthquakes are caused by movement inside the Earth.
Q5 — hard
Why should you not lie flat on the ground during lightning?
A. It is uncomfortable
B. Current spreading through the ground can reach you ✓ Correct
C. The ground is hot
D. It attracts rain
Solution: Ground current can travel through a lying body.
Q6 — hard
Buildings in earthquake-prone areas are best made:
A. very tall with heavy stone
B. with lighter materials and quake-resistant design ✓ Correct
C. with only mud
D. without foundations
Solution: Lighter, flexible structures resist tremors better.
Q7 — hard
A charged balloon sticks to a wall because it:
A. becomes magnetic
B. induces an opposite charge on the wall surface ✓ Correct
C. gets wet
D. becomes heavier
Solution: Charge induction creates attraction.
Q8 — medium
Earthquakes are caused mainly by movement of:
A. clouds
B. tectonic plates ✓ Correct
C. ocean waves
D. the moon
Solution: Plate movement releases energy as tremors.
Q9 — medium
The power of an earthquake is measured on the:
A. Celsius scale
B. Richter scale ✓ Correct
C. pH scale
D. decibel scale
Solution: The Richter scale measures magnitude.
Q10 — medium
An earthquake of magnitude higher than which value is usually destructive?
A. 2
B. 4
C. 7 ✓ Correct
D. 10
Solution: Magnitudes above about 7 cause severe damage.
Q11 — medium
During a thunderstorm, the safest place is:
A. under a tall tree
B. inside a building or a car ✓ Correct
C. in an open field
D. near a metal pole
Solution: Enclosed structures provide protection.