This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 11 Force And Pressure – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 11 Force And Pressure Quiz 5 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is pressure? A) The amount of force exerted on a surface. B) The surface area of an object. C) The weight of an object. D) None of the above. Show Answer Correct Answer: A) The amount of force exerted on a surface. 2. Pressure is directly proportional to thrust A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. Who among the below claimed that vacuum could not exist in nature but was soon proven wrong? A) Aristotle. B) Galileo Galilei. C) Evangelist Torricelli. D) None of these. Show Answer Correct Answer: A) Aristotle. 4. A tennis player hits a tennis ball with a racket.Which of the following is applying the force? A) Ball. B) Racket. C) Tennis Player. D) None of the above. Show Answer Correct Answer: C) Tennis Player. 5. Leaves or fruits fall on the ground due to A) Magnetic force. B) Gravitational force. C) Electrostatic force. D) Muscular force. Show Answer Correct Answer: B) Gravitational force. 6. Which of the following is not a contact force? A) Muscular force. B) Frictional Force. C) Gravitational force. D) None of the above. Show Answer Correct Answer: C) Gravitational force. 7. Unit of force is?? A) N/m. B) Newton. C) Pascal. D) None of the above. Show Answer Correct Answer: B) Newton. 8. Thrust and force is similar to each other by which of the following factors A) Nature of operation. B) SI unit. C) Name. D) None of the above. Show Answer Correct Answer: B) SI unit. 9. Astronauts wear specially designed pressurized suits in space to counter the effects of ..... atmospheric pressure A) High. B) Low. C) Zero. D) None of the above. Show Answer Correct Answer: C) Zero. 10. Which has greater linear speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail? A) The inside horse. B) The outside horse. C) Neither. D) None of the above. Show Answer Correct Answer: B) The outside horse. 11. Liquid pressure depends on which of the following factors? A) Height of liquid column. B) Density of liquid. C) Height of the liquid column and density of liquid. D) None of the above. Show Answer Correct Answer: C) Height of the liquid column and density of liquid. 12. If a piston has a face of 2cm$^{2}$ and a force of 5N is applied what is the total pressure? A) 2.5n/cm $^{2} $. B) 0.Chn/cm $^{2} $. C) 10N/cm$^{2}$. D) 10N/m$^{2}$. Show Answer Correct Answer: A) 2.5n/cm $^{2} $. 13. An object weighing 400 N is placed on an area of 100 m$^{2 }$. What is the pressure applied by the object on that area? A) 40000 Pa. B) 4 Pa. C) 40 Pa. D) 0.04 Pa. Show Answer Correct Answer: B) 4 Pa. 14. What is the instrument used to measure Atmospheric Pressure(atm) A) Barometer. B) Thermometer. C) Richter Scale. D) Hygrometer. Show Answer Correct Answer: A) Barometer. 15. What is the CGS unit of moment of force? A) Pascal. B) Joule. C) Dyn. D) Dyn cm. Show Answer Correct Answer: D) Dyn cm. 16. Two Objects Repel Each Other. This Repulsion Could Be Due To: A) Frictional force only. B) Electrostatic force only. C) Magnetic force only. D) Either a magnetic or an electrostatic force. Show Answer Correct Answer: D) Either a magnetic or an electrostatic force. 17. Which one of the following are contact forces A) Force or Gravity. B) Magnetic Force. C) Force of Friction. D) Electrostatic force. Show Answer Correct Answer: C) Force of Friction. 18. Why does an heated tin can gets crushed when we put water on it? A) Due to its nature. B) Due to high pressure in the can. C) Due to low pressure in the can. D) None of the above. Show Answer Correct Answer: C) Due to low pressure in the can. 19. ..... force acts in direction opposite to the direction of movement. A) None of these. B) Frictional force. C) Muscular force. D) Electrostatic force. Show Answer Correct Answer: B) Frictional force. 20. What is resultant force? A) Total Force applied. B) Force applied from the left side. C) Force applied from the right side. D) Force applied from the top. Show Answer Correct Answer: A) Total Force applied. 21. A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus:(a) Changes the direction & speed of the ball(b) Does not change the direction but speed only(c) Does not change the speed but direction only(d) Does not change either direction or speed A) A. B) B. C) C. D) D. Show Answer Correct Answer: A) A. 22. Why won't you sink in mud if you wear boots? A) Because the surface area is larger creating less pressure. B) Has air in it to keep you floating. C) Because the mud won't want you. D) None of the above. Show Answer Correct Answer: A) Because the surface area is larger creating less pressure. 23. When A Force Of 5 N Acts On A Surface, It Produces A Pressure Of 500 Pa. The Area Of Surface Then Must Be A) 10 cm2. B) 50 cm2. C) 100 cm2. D) 0.01 cm 2. Show Answer Correct Answer: C) 100 cm2. 24. Which of the following describes effects of force? A) It may make an object move from rest. B) It may change the speed of an objecti if it is moving. C) It may change the direction of motionof an object. D) It may bring about a change in theshape of an object. E) All of these effects. Show Answer Correct Answer: E) All of these effects. 25. What is a force that works AGAINST MOTION? A) Force. B) Motion. C) Gravity. D) Friction. Show Answer Correct Answer: D) Friction. ← PreviousNext →Related QuizzesClass 8 Science Chapter 11 Force And Pressure Quiz 1Class 8 Science Chapter 11 Force And Pressure Quiz 2Class 8 Science Chapter 11 Force And Pressure Quiz 3Class 8 Science Chapter 11 Force And Pressure Quiz 4Class 8 Science Chapter 11 Force And Pressure Quiz 6Class 8 Science Chapter 11 Force And Pressure Quiz 7Class 8 Science Chapter 11 Force And Pressure Quiz 8Class 8 Science Chapter 11 Force And Pressure Quiz 9Class 8 Science Chapter 11 Force And Pressure Quiz 10Class 8 Science Chapter 11 Force And Pressure Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books