Lightning and Thunder MCQs
Lightning and Thunder MCQs – CBSE Class 8 Science
Class: 8
Subject: Science
Section: Some Natural Phenomena
Topic: Lightning and Thunder MCQs
Board: CBSE (NCERT Based)
Subject: Science
Section: Some Natural Phenomena
Topic: Lightning and Thunder MCQs
Board: CBSE (NCERT Based)
1. Lightning is caused by the accumulation of:
Answer: b) Electric charges
Explanation: During storms, charges accumulate in clouds due to friction between water droplets and ice particles. When the charge difference becomes large, a sudden discharge occurs as lightning.
Explanation: During storms, charges accumulate in clouds due to friction between water droplets and ice particles. When the charge difference becomes large, a sudden discharge occurs as lightning.
2. Lightning occurs between:
Answer: c) Both a and b
Explanation: Lightning may occur between two clouds or between a cloud and the Earth’s surface when charge imbalance becomes extreme.
Explanation: Lightning may occur between two clouds or between a cloud and the Earth’s surface when charge imbalance becomes extreme.
3. The temperature of lightning can reach up to:
Answer: c) 30,000°C
Explanation: Lightning is extremely hot—hotter than the Sun’s surface—causing surrounding air to expand explosively.
Explanation: Lightning is extremely hot—hotter than the Sun’s surface—causing surrounding air to expand explosively.
4. Thunder is the sound produced due to:
Answer: b) Expansion of heated air
Explanation: Lightning heats air rapidly, causing sudden expansion and vibration that produces thunder.
Explanation: Lightning heats air rapidly, causing sudden expansion and vibration that produces thunder.
5. We see lightning before thunder because:
Answer: a) Light travels faster than sound
Explanation: Light reaches our eyes almost instantly, while sound takes time to travel through air.
Explanation: Light reaches our eyes almost instantly, while sound takes time to travel through air.
6. The device used to protect buildings from lightning is:
Answer: b) Lightning conductor
Explanation: It provides a low‑resistance path for electric discharge to safely reach the ground.
Explanation: It provides a low‑resistance path for electric discharge to safely reach the ground.
7. Lightning conductor is made of:
Answer: c) Copper/Metal
Explanation: Metals are good conductors and allow electric charge to pass safely to Earth.
Explanation: Metals are good conductors and allow electric charge to pass safely to Earth.
8. Safest place during lightning:
Answer: c) Inside building
Explanation: Buildings (especially with conductors) shield us from electric discharge.
Explanation: Buildings (especially with conductors) shield us from electric discharge.
9. Which cloud is associated with thunderstorms?
Answer: b) Cumulonimbus
Explanation: These tall storm clouds generate strong charge separation leading to lightning.
Explanation: These tall storm clouds generate strong charge separation leading to lightning.
10. Lightning is an example of:
Answer: a) Static electricity
Explanation: It results from accumulation of static charges in clouds.
Explanation: It results from accumulation of static charges in clouds.
11. Lightning discharge produces:
Answer: c) Heat, light & sound
Produces intense heat, flash, and thunder.
Produces intense heat, flash, and thunder.
12. Flash of lightning lasts for:
Answer: b) Fraction of second
Discharge happens extremely quickly.
Discharge happens extremely quickly.
13. Distance of lightning can be estimated using:
Answer: b) Thunder delay
Time gap between flash & thunder indicates distance.
Time gap between flash & thunder indicates distance.
14. Standing in water during lightning is:
Answer: b) Dangerous
Water conducts electricity.
Water conducts electricity.
15. Mobile use in open field during lightning is:
Answer: b) Unsafe
Metal/electrical devices increase risk.
Metal/electrical devices increase risk.
16. Rubber shoes protect because they are:
Answer: b) Insulators
They resist electric flow.
They resist electric flow.
17. Lightning mostly strikes:
Answer: b) Tall objects
Charges prefer shortest path to ground.
Charges prefer shortest path to ground.
18. Lightning conductor is connected to:
Answer: c) Ground
Safely dissipates charges.
Safely dissipates charges.
19. Lightning was explained by:
Answer: c) Benjamin Franklin
His kite experiment proved electrical nature of lightning.
His kite experiment proved electrical nature of lightning.
20. Thunderstorm is a combination of:
Answer: a) Lightning & thunder
Often accompanied by rain and strong winds.
Often accompanied by rain and strong winds.
