MCQ Chapter 8 General Science Class 7 Maharashtra Board MCQ For All Chapters – General Science Class 7Static Electricity 1. In Franklin’s kite experiment, what conducted the charge from the clouds to the earth? Silk cloth Metal wire and string Deodar wood Air aloneQuestion 1 of 202. What charges the upper part of some clouds during lightning? Negative Positive Neutral Both chargesQuestion 2 of 203. What is the charge on the lower side of a cloud during lightning? Positive Negative Neutral MixedQuestion 3 of 204. What is a lightning strike caused by? Heat flow Charge flow from cloud to ground Water movement Sound energyQuestion 4 of 205. What material forms the main strip of a lightning conductor? Steel Copper Plastic GoldQuestion 5 of 206. Why is the upper end of a lightning conductor forked? To repel charges To concentrate charges To attract rain To reduce weightQuestion 6 of 207. What helps spread the electric charge into the ground in a lightning conductor? Sand and gravel Coal and salt Oil and water Wood and metalQuestion 7 of 208. What does a lightning conductor protect against? Heavy rain Lightning strikes Static buildup Wind damageQuestion 8 of 209. Why is it unsafe to use an umbrella during lightning? It blocks signals It may conduct electricity It attracts rain It creates noiseQuestion 9 of 2010. How are electric charges generated in objects? By cooling By rubbing By shaking By heatingQuestion 10 of 2011. What is a key characteristic of static electric charge? It lasts indefinitely It remains for a short duration It flows like current It only attractsQuestion 11 of 2012. What gas is produced by lightning that improves soil fertility? Oxygen Nitrogen oxide Carbon dioxide Sulfur dioxideQuestion 12 of 2013. What does lightning convert oxygen into that protects against UV rays? Nitrogen Ozone Carbon HydrogenQuestion 13 of 2014. Why do farmers use an iron staff in the ground during rainy conditions? To mark territory To conduct charge safely To repel water To attract lightningQuestion 14 of 2015. What happens to thermocol balls shaken in a bottle? They dissolve They stick to the bottle They attract each other They float awayQuestion 15 of 2016. Which object does not get easily charged by rubbing? Plastic Steel Nylon BalloonQuestion 16 of 2017. What did Thales observe with amber 2500 years ago? It repelled feathers It attracted feathers when rubbed It sparked It became neutralQuestion 17 of 2018. Why is lightning not seen daily during the rainy season? Clouds lack charge Charge buildup varies Rain neutralizes all charges Ground repels cloudsQuestion 18 of 2019. How can an object be charged by contact? By shaking it By touching it with a charged object By heating it By cooling itQuestion 19 of 2020. What must a metal have to replace gold in an electroscope? High density Flexibility and conductivity High weight Magnetic propertiesQuestion 20 of 20 Loading...
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