Some Natural Phenomena Part 1: MCQs (Q1–Q25)
🌩️ Some Natural Phenomena – MCQs for Class 8 Science
Part 1: Q1–Q25
Q1. Which of the following is a natural phenomenon?
A) Lightning
B) Earthquake
C) Cyclone
D) All of these
✅ Correct Answer: D) All of these
Explanation:
- A, B, C – All are examples of natural phenomena.
- D) ✔ Correct, since all mentioned options are natural events.
Q2. Lightning is caused due to:
A) Heat from the Sun
B) Electric discharge in clouds
C) Movement of air
D) Movement of tectonic plates
✅ Correct Answer: B) Electric discharge in clouds
Explanation:
- B) ✔ Lightning occurs when charges in clouds discharge.
Q3. Which scientist proved that lightning and electric sparks are the same?
A) Thomas Edison
B) Benjamin Franklin
C) Isaac Newton
D) Michael Faraday
✅ Correct Answer: B) Benjamin Franklin
Explanation:
- B) ✔ Franklin demonstrated using a kite experiment.
Q4. The device used to protect tall buildings from lightning is called:
A) Fuse
B) Conductor
C) Lightning conductor
D) Generator
✅ Correct Answer: C) Lightning conductor
Explanation:
- C) ✔ It safely directs lightning into the ground.
Q5. Earthquakes are caused due to:
A) Movement of tectonic plates
B) Cyclones
C) Lightning
D) Rainfall
✅ Correct Answer: A) Movement of tectonic plates
Explanation:
- A) ✔ Shaking of Earth’s crust happens due to plate movement.
Q6. Which of the following is NOT a natural phenomenon?
A) Cyclone
B) Lightning
C) Earthquake
D) Traffic jam
✅ Correct Answer: D) Traffic jam
Explanation:
- D) ✔ Caused by human activity, not natural.
Q7. The SI unit of electric charge is:
A) Volt
B) Ampere
C) Coulomb
D) Ohm
✅ Correct Answer: C) Coulomb
Explanation:
- C) ✔ Charge is measured in coulombs.
Q8. Which type of charge is acquired by a glass rod when rubbed with silk?
A) Positive
B) Negative
C) Neutral
D) None
✅ Correct Answer: A) Positive
Explanation:
- A) ✔ Glass loses electrons → becomes positively charged.
Q9. The instrument used to detect charge is called:
A) Barometer
B) Electroscope
C) Voltmeter
D) Ammeter
✅ Correct Answer: B) Electroscope
Explanation:
- B) ✔ Electroscope detects presence of electric charge.
Q10. Which type of charge is acquired by an ebonite rod when rubbed with fur?
A) Positive
B) Negative
C) Neutral
D) None
✅ Correct Answer: B) Negative
Explanation:
- B) ✔ Ebonite gains electrons → negative charge.
Q11. Like charges:
A) Attract each other
B) Repel each other
C) Neither attract nor repel
D) Both attract and repel
✅ Correct Answer: B) Repel each other
Explanation:
- B) ✔ Like charges repel, unlike charges attract.
Q12. Which of the following is an example of static electricity?
A) Electric bulb glowing
B) Lightning
C) Fan rotating
D) Generator working
✅ Correct Answer: B) Lightning
Explanation:
- B) ✔ Lightning is a large-scale static discharge.
Q13. The point inside the Earth where earthquake originates is called:
A) Epicentre
B) Focus
C) Fault
D) Seismic zone
✅ Correct Answer: B) Focus
Explanation:
- B) ✔ Focus = origin point of earthquake inside Earth.
Q14. The point on Earth’s surface directly above the focus is called:
A) Fault
B) Epicentre
C) Seismic zone
D) Hypocentre
✅ Correct Answer: B) Epicentre
Explanation:
- B) ✔ Epicentre is directly above focus on surface.
Q15. Which instrument is used to measure seismic waves?
A) Thermometer
B) Electroscope
C) Seismograph
D) Hydrometer
✅ Correct Answer: C) Seismograph
Explanation:
- C) ✔ Records earthquake waves.
Q16. Which is the safest place during an earthquake?
A) Under a tree
B) Near tall buildings
C) Open ground
D) Inside lift
✅ Correct Answer: C) Open ground
Explanation:
- C) ✔ Open ground reduces risk from falling objects.
Q17. Which scale measures the magnitude of an earthquake?
A) Kelvin scale
B) Richter scale
C) Celsius scale
D) Decibel scale
✅ Correct Answer: B) Richter scale
Explanation:
- B) ✔ Richter scale measures earthquake intensity.
Q18. Earthquakes produce which type of waves?
A) Seismic waves
B) Sound waves
C) Light waves
D) Water waves
✅ Correct Answer: A) Seismic waves
Explanation:
- A) ✔ Earthquakes release energy as seismic waves.
Q19. Which of these is NOT caused by earthquakes?
A) Tsunamis
B) Landslides
C) Volcanic eruptions
D) Rainfall
✅ Correct Answer: D) Rainfall
Explanation:
- D) ✔ Rainfall is weather-related, not earthquake-related.
Q20. When clouds become electrically charged, they develop:
A) Static electricity
B) Current electricity
C) Heat energy
D) Magnetism
✅ Correct Answer: A) Static electricity
Explanation:
- A) ✔ Static charge builds up in clouds.
Q21. What happens when charges flow through a conductor?
A) Static electricity
B) Current electricity
C) Neutral electricity
D) No effect
✅ Correct Answer: B) Current electricity
Explanation:
- B) ✔ Flow of charge = current electricity.
Q22. Which of the following precautions should be taken during lightning?
A) Stand near trees
B) Use umbrella with metal rod
C) Stay indoors
D) Swim in open water
✅ Correct Answer: C) Stay indoors
Explanation:
- C) ✔ Staying indoors prevents risk of lightning strike.
Q23. Earthquakes cannot be predicted because:
A) They occur very rarely
B) They occur suddenly
C) They occur due to cyclones
D) They occur due to rainfall
✅ Correct Answer: B) They occur suddenly
Explanation:
- B) ✔ Sudden tectonic movements cannot be predicted exactly.
Q24. Which of these is a man-made phenomenon, not natural?
A) Lightning
B) Earthquake
C) Short circuit fire
D) Tsunami
✅ Correct Answer: C) Short circuit fire
Explanation:
- C) ✔ Caused by human electrical faults.
Q25. Which type of charges are produced when amber is rubbed with wool?
A) Positive
B) Negative
C) Both positive and negative
D) None
✅ Correct Answer: B) Negative
Explanation:
- B) ✔ Amber gains electrons from wool → negative charge.
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