This quiz works best with JavaScript enabled. Home > Science > Overview > General Science – Quiz 361 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 361 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Why does an apple look red? A) Because it absorbs red light and reflects white light. B) Because it absorbs red light waves and reflects the others. C) Because it absorbs all colors of light. D) Because it reflects red light waves and absorbs the others. Show Answer Correct Answer: D) Because it reflects red light waves and absorbs the others. 2. Glands in the neck appear swollen in which of the following diseases? A) Tooth decay. B) Goitre. C) Rickets. D) Scurvy. Show Answer Correct Answer: B) Goitre. 3. Fragments of metal or rock which enter the Earth's atmosphere from space are called..... A) Meteorites. B) Meteoroids. C) Meteors. D) None of above. Show Answer Correct Answer: C) Meteors. 4. Insert any movement of which the following is a cost. A) HCl. B) $H_2SO_4$. C) $Mg\left(OH\right)_2$. D) $HNO_3$. Show Answer Correct Answer: C) $Mg\left(OH\right)_2$. 5. What is the force that opposes the motion of an object through a fluid? A) Pull force. B) Friction force. C) Drag force. D) Push force. Show Answer Correct Answer: C) Drag force. 6. Why do our ears pop in the airplane? A) Due to changes in air pressure. B) Due to changes in air temperature. C) Due to changes in humidity. D) Due to changes in wind speed. Show Answer Correct Answer: A) Due to changes in air pressure. 7. Entire ecosystems are now being preserved (saved) because A) All species have a role and it protects all species (even unknown species) from extinction. B) Biodiversity will decrease. Show Answer Correct Answer: A) All species have a role and it protects all species (even unknown species) from extinction. 8. A north pole and a south pole will attract. A) True. B) False. Show Answer Correct Answer: A) True. 9. Which pH level indicates a weak acid? A) 1-3. B) 4-6. C) 8-11. D) 12-14. Show Answer Correct Answer: B) 4-6. 10. Balancing this reaction:..... CH4 +..... O2 $\rightarrow$ ..... CO2 +..... H2O A) 2, 1, 3, 1. B) 1, 2, 1, 2. C) 1, 2, 2, 1. D) 2, 1, 1, 2. Show Answer Correct Answer: B) 1, 2, 1, 2. 11. What is the unit used to measure length A) Meter. B) Distance. C) Gram. D) Liter. Show Answer Correct Answer: A) Meter. 12. Scientists find out about things that are both helpful and harmful to man. True or False? A) True. B) False. Show Answer Correct Answer: A) True. 13. The bending of a light wave is called..... A) Ridiculous. B) Refraction. C) Prism. D) None of above. Show Answer Correct Answer: B) Refraction. 14. Choose the correct answer for the following definition. Refers to living things. A) Abiotic. B) Biotic. Show Answer Correct Answer: B) Biotic. 15. Newtons 3rd Law of Motion states: A) An object at rest will remain at rest unless acted upon by an outside force. B) For every action, there is an equal and opposite reaction. C) The greater the mass of an object, the more force it will take to accelerate the object. D) None of above. Show Answer Correct Answer: B) For every action, there is an equal and opposite reaction. 16. Octane is composed of 8 carbon atoms (C) and eighteen hydrogen atoms (H). What is the chemical formula? A) C8h18. B) CH. C) 8C18H. D) CH18. Show Answer Correct Answer: A) C8h18. 17. Below which year's choice is a leap year? A) 2010. B) 2008. C) 2015. D) 1999. Show Answer Correct Answer: B) 2008. 18. What is true about the composition of salt? A) Salt is made up of atoms of only one kind. B) Salt is made up of a combination of atoms of different kinds. C) Salt is made up of molecules of only one kind. D) Salt is made up of ions of only one kind. Show Answer Correct Answer: B) Salt is made up of a combination of atoms of different kinds. 19. When the sun is high in the sky shadows are..... A) Long. B) Short. Show Answer Correct Answer: B) Short. 20. The properties and interactions of magnets A) Magnetic domain. B) Magnetic pole. C) Magnetism. D) Magnetic field. Show Answer Correct Answer: C) Magnetism. ← PreviousNext →Related QuizzesScience QuizzesGeneral Science Quiz 1General Science Quiz 2General Science Quiz 3General Science Quiz 4General Science Quiz 5General Science Quiz 6General Science Quiz 7General Science Quiz 8General Science Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books