This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 15 Some Natural Phenomena – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 15 Some Natural Phenomena Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Scientists have arranged different materials according to their ability to hold or give up electrons (negative charge). This ranking is called the ..... A) Electrical conductivity chart. B) Electrochemical series. C) Triboelectric series. D) Charge transfer diagram. Show Answer Correct Answer: C) Triboelectric series. 2. A sudden shaking of the earth lasting for a very short time is known as ..... A) Lightning. B) Thunder. C) Earth quake. D) Tsunami. Show Answer Correct Answer: C) Earth quake. 3. What did William Gilbert name? A) Seismometer. B) Sesmograph. C) Gold leaf electroscope. D) Static electricity. Show Answer Correct Answer: D) Static electricity. 4. What is the device used to check if a object is charged A) Electroscope. B) Electrolyte. C) Charge Checker. D) Electrobox. Show Answer Correct Answer: A) Electroscope. 5. The tremors produce waves on the surface of the earth. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 6. What is the unique characteristic of tsunamis compared to other ocean waves? A) They move through the entire water column. B) They only affect the near-surface layer of the ocean. C) They are caused by underwater earthquakes. D) They are smaller in size compared to other ocean waves. Show Answer Correct Answer: A) They move through the entire water column. 7. A major earthquake is usually followed by minor earthquakes called ..... A) Aftershocks. B) Seismic waves. C) Tremors. D) Quakes. Show Answer Correct Answer: A) Aftershocks. 8. When a glass rod is rubbed with silk, then glass rods acquires A) Negative Charge. B) Positive charge. C) Sometimes negative charge and sometimes positive charge. D) No charge. Show Answer Correct Answer: B) Positive charge. 9. An electroscope is a device which is used to find if an object is A) Charged. B) Magnetised. C) Hot. D) Free of cracks. Show Answer Correct Answer: A) Charged. 10. When a glass rod is rubbed with a piece of silk cloth the rod A) Becomes positively charged while the cloth has a negative charge. B) And the cloth both acquire positive charge. C) And the cloth both acquire negative charge. D) Becomes negatively charged while the cloth has a positive charge. Show Answer Correct Answer: A) Becomes positively charged while the cloth has a negative charge. 11. The Phenomena of sparks in the Sky are called ..... A) Thunder. B) Flashes. C) Lightening. D) Electricity. Show Answer Correct Answer: C) Lightening. 12. Generally lightning conductors are made of ..... A) Plastic. B) Wood. C) Copper. D) Iron. Show Answer Correct Answer: C) Copper. 13. Unlike charges A) Repels each other. B) Attract in same direction. C) Attract each other. D) None of the above. Show Answer Correct Answer: C) Attract each other. 14. Lightening is ..... on huge scale. A) Electric spark. B) Magnetic effect. C) Electro-magnetic effect. D) None of the above. Show Answer Correct Answer: A) Electric spark. 15. ..... is a device used to protect buildings from the effect of lightning. A) MCB. B) Fuses. C) Lightning conductor. D) Electric meter. Show Answer Correct Answer: C) Lightning conductor. 16. The Procces of Giving electric charge to an object is called ..... A) Charging the object. B) Object by charging. C) All the above. D) None of the above. Show Answer Correct Answer: A) Charging the object. 17. The power of an earthquake is expressed in terms of magnitude on a scale called A) Righter Scale. B) Quake scale. C) Richter Scale. D) Earth Scale. Show Answer Correct Answer: C) Richter Scale. 18. ..... is provided in building to protect us from electrical shocks due to to any leakage of electrical current. A) Discharged. B) Earthing. C) Lightning. D) Birds. Show Answer Correct Answer: B) Earthing. 19. The magnitude of earthquake is measured by A) Richter Scale. B) Decibel Scale. C) Celsius. D) Kelvin. Show Answer Correct Answer: A) Richter Scale. 20. An earthquake lasts for a long time. A) Not mentioned. B) True. C) False. D) Partially true. Show Answer Correct Answer: C) False. 21. Which is not a sure test to know the presence of charge on a body A) Attraction. B) Repulsion. C) Both. D) None. Show Answer Correct Answer: A) Attraction. 22. Lightning conductor is installed on a building A) To collect the electric power present in the building. B) To repel the lightning that falls on the building. C) To force the lightning to fall in an area where there are no buildings. D) To conduct electric charge to the ground when lightning strikes the building. Show Answer Correct Answer: D) To conduct electric charge to the ground when lightning strikes the building. 23. The waves are recorded by Richter scale. A) True. B) Not mentioned. C) False. D) Partially true. Show Answer Correct Answer: C) False. 24. The unit of force is A) Newton. B) Aa. C) Cc. D) Qq. Show Answer Correct Answer: A) Newton. 25. The electroscope is a device which is used to find if an object is A) Charged. B) Free of cracks. C) Magnetic. D) Hot. Show Answer Correct Answer: A) Charged. ← PreviousNext →Related QuizzesClass 8 Science Chapter 15 Some Natural Phenomena Quiz 1Class 8 Science Chapter 15 Some Natural Phenomena Quiz 2Class 8 Science Chapter 15 Some Natural Phenomena Quiz 3Class 8 Science Chapter 15 Some Natural Phenomena Quiz 4Class 8 Science Chapter 15 Some Natural Phenomena Quiz 5Class 8 Science Chapter 15 Some Natural Phenomena Quiz 6Class 8 Science Chapter 15 Some Natural Phenomena Quiz 8Class 8 Science Chapter 15 Some Natural Phenomena Quiz 9Class 8 Science Chapter 15 Some Natural Phenomena Quiz 10Class 8 Science Chapter 15 Some Natural Phenomena Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books