This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Science > Force And Pressure > Class 8 Science Chapter 11 Force And Pressure – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 11 Force And Pressure Quiz 4 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is Friction? A) Push. B) Pull. C) Both (A) and (B). D) None of these. Show Answer Correct Answer: C) Both (A) and (B). 2. Force / Area:Pressure::Mass / Volume: ..... A) Relative Density. B) Density. C) Atmospheric pressure. D) None of the above. Show Answer Correct Answer: B) Density. 3. Unit for Pressure is- A) N/m (Pascal). B) Newton (Pascal). C) N2/m (Pascal). D) N/m (Pascal). Show Answer Correct Answer: A) N/m (Pascal). 4. The cutting edge of a knife is sharpened because A) The reduced area of sharp edge exerts more force. B) The Increased area of sharp edge exerts more force. C) The increased area of sharp edge exerts more pressure. D) The reduced area of sharp edge exerts more pressure. Show Answer Correct Answer: D) The reduced area of sharp edge exerts more pressure. 5. In which direction liquid exerts pressure A) In all directions. B) Sideways. C) Downward. D) All of these. Show Answer Correct Answer: A) In all directions. 6. A rusty bolt is hard to get turned. What could be done to help get the bolt turned? A) Increase the lever arm. B) Decrease the force. C) Apply the force at a 30 degree angle. D) None of the above. Show Answer Correct Answer: A) Increase the lever arm. 7. Forces are always due to some ..... A) Reason. B) Interaction. C) Irregularity. D) Contact. Show Answer Correct Answer: B) Interaction. 8. The force acting on a unit area of a surface is called A) Force. B) Pressure. C) Friction. D) None of the above. Show Answer Correct Answer: B) Pressure. 9. It is easier to cut vegetables with sharp end of knife rather than with its blunt end because A) Smaller area provides more pressure for the applied force. B) Smaller area provides less pressure for the applied force. C) None of the above. D) None of the above. Show Answer Correct Answer: A) Smaller area provides more pressure for the applied force. 10. It is difficult to walk on an oily floor because A) Force of friction is very less. B) Force of friction is very high. C) We don't like to walk on oily floor. D) None of these. Show Answer Correct Answer: A) Force of friction is very less. 11. A balloon was pressed against a wall after it was rubbed with a cloth. The balloon sticks to the wall. What force is causing the balloon to stick to the wall? A) Electrostatic Force. B) Gravity. C) Magnetic Force. D) Friction. Show Answer Correct Answer: A) Electrostatic Force. 12. Liquids exert pressure on the walls of the container A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Name the instrument which is used to measure liquid pressure. A) Manometer. B) Rain Gauge. C) Anemometer. D) Barometer. Show Answer Correct Answer: A) Manometer. 14. What does pressure measure? A) Strength. B) Force exerted on a given area of surface. C) All the above. D) None of the above. Show Answer Correct Answer: B) Force exerted on a given area of surface. 15. The air pressure on our body is euql to ..... pressure. A) Sea bottom. B) Space. C) Atomospheric. D) None of the above. Show Answer Correct Answer: C) Atomospheric. 16. What decreases as you go up in the atmosphere? A) Altitude. B) Meteors. C) Atmosphere. D) Air Pressure. Show Answer Correct Answer: D) Air Pressure. 17. Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test? A) How does the surface of a ramp affect the distance a car will roll?. B) How does the mass of the car affect the distance a car will roll?. C) How does the height of a ramp affect the distance a car will roll?. D) How does the surface of a ramp affect how fast a car will travel?. Show Answer Correct Answer: A) How does the surface of a ramp affect the distance a car will roll?. 18. In a game of tug-of-war A, B, C are on the left side while X, Y, Z are on the right side. A applies a force of 5N, B applies 10N, C applies 7.5N and X apples 10N, Y applies 15N and Z applies 2.5N. Who won the game? A) A, B, C. B) X, Y, Z. C) It was a tie. D) None of the above. Show Answer Correct Answer: C) It was a tie. 19. What is the unit of moment f force? A) Nm. B) N/m. C) M. D) N. Show Answer Correct Answer: A) Nm. 20. A pressure of 10kPa acts on an area of 0.3 m$^{2}$. The force acting on the area will be A) 3000 N. B) 3 N. C) 30 N. D) 300 N. Show Answer Correct Answer: A) 3000 N. 21. Force acting on per unit area is called A) Force. B) Non-contact forces. C) Contact forces. D) Pressure. Show Answer Correct Answer: D) Pressure. 22. If both forces are going in the same direction you should ..... those forces A) Subtract. B) Divide. C) Add. D) Multiply. Show Answer Correct Answer: C) Add. 23. Is the gravity a property of earth only? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 24. PRESSURE EXERTED BY A STATIONARY LIQUID IS CALLED AS A) MUSCULAR FORCE. B) BALANCED FORCE. C) HYDROSTATIC PRESSURE. D) FRICTIONAL FORCE. Show Answer Correct Answer: C) HYDROSTATIC PRESSURE. 25. Atmospheric pressure increases with increase in altitude A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 26. Which of the following is not an example of muscular force A) A child riding a bicycle. B) A person drawing water from a well. C) A Porter carrying a load on a cart. D) An apple falling from a tree. Show Answer Correct Answer: D) An apple falling from a tree. 27. 1 kilogram weight is equal to A) 0.098 N. B) 9.8 N. C) 98 N. D) 0.98 N. Show Answer Correct Answer: B) 9.8 N. 28. How can we measure Pressure? A) F/M$^{2 }$(Force/Area). B) Pascal (P). C) Newton per square. D) All (A), (B), (C) are correct. E) None of these. Show Answer Correct Answer: D) All (A), (B), (C) are correct. 29. Which Of The Following Are Contact Forces? A) Friction and Gravitational force. B) Gravitational force and Magnetic force. C) Gravitational force and Muscular force. D) Friction and Muscular force. Show Answer Correct Answer: D) Friction and Muscular force. 30. What happens to the speed of an object if the applied force acts in the direction of the motion of the object A) Decreases. B) Remains same. C) Changes its direction. D) Increases. Show Answer Correct Answer: D) Increases. 31. The force exerted by our muscles is called A) Non contact force. B) Muscular force. C) Electrostatic force. D) Gravitational force. Show Answer Correct Answer: B) Muscular force. 32. ..... is a vector quantity. A) Force. B) Speed. C) Length. D) Time. Show Answer Correct Answer: A) Force. 33. What will cause an object to move? A) Applied forces. B) Balanced forces. C) Unbalanced forces. D) None of the above. Show Answer Correct Answer: C) Unbalanced forces. 34. Tides in the sea are due to which type of force of the moon and sun?? A) Frictional. B) Magnetic. C) Gravitational. D) None of the above. Show Answer Correct Answer: C) Gravitational. 35. A child on merry-go-round show ..... motion A) Linear. B) Random. C) Circulatory. D) Multiple. Show Answer Correct Answer: C) Circulatory. 36. What happens when two forces act in the same direction? A) The stronger one prevails. B) They cancel each other out. C) Their strengths are added. D) Their sum divided by the two is the total force. Show Answer Correct Answer: C) Their strengths are added. 37. THE FORCE OF ATTRACTION BETWEEN TWO OBJECTS DUE TO THEIR MASSES IS CALLED AS A) FORCE. B) GRAVITATIONAL FORCE. C) THRUST. D) MUSCULAR FORCE. Show Answer Correct Answer: B) GRAVITATIONAL FORCE. 38. A force may make a object move from rest. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. Motion of earth around sun is ..... A) Non periodic motion. B) Periodic motion. C) Circulatory. D) Both periodic and circulatory. E) Both non periodic and circulatory. Show Answer Correct Answer: D) Both periodic and circulatory. 40. What do we mean by the MAGNITUDE of a force? A) The speed of the force. B) The type of the force. C) The strength of the force. D) The direction of the force. Show Answer Correct Answer: C) The strength of the force. 41. Do liquids and gases exert pressure? A) Yes. B) No. C) Cannot say anything about it. D) None of the above. Show Answer Correct Answer: A) Yes. 42. Forces changes the A) Shape of the object. B) Speed of the object. C) Direction of the object. D) All of these. Show Answer Correct Answer: D) All of these. 43. Buses and trucks usually have double wheels on the rear side to A) Decrease pressure. B) Increase pressure. C) Exert same pressure. D) Decrease area of contact. Show Answer Correct Answer: A) Decrease pressure. 44. The reason we are not crushed under the force of gravity is that the A) The pressure inside our bodies is also equal to the atmospheric pressure and balances the pressure from outside. B) The pressure inside our bodies is also equal to the gravitational pressure and balances the pressure from outside. C) The friction inside our bodies is also equal to the atmospheric pressure and balances the pressure from outside. D) None of the above. Show Answer Correct Answer: A) The pressure inside our bodies is also equal to the atmospheric pressure and balances the pressure from outside. 45. An example of a non-contact force is A) Force exerted by us to lift a bucket. B) Push a stationary car. C) Force exerted by magnet. D) Hit a cricket ball for a 6 run. Show Answer Correct Answer: C) Force exerted by magnet. 46. The atmosphere exists to about ..... height and extends up to about 400 km height. A) 20 Km. B) 16 Km. C) 20. D) None of the above. Show Answer Correct Answer: B) 16 Km. 47. Force is a push or pull which helps in changing of an object A) Position. B) Direction. C) Shape. D) All of them. Show Answer Correct Answer: D) All of them. 48. Children playing football in park show what kind of motion? A) Unifrom. B) Non peroidic. C) Peroidic. D) Linear. Show Answer Correct Answer: B) Non peroidic. 49. When two forces, applied on an object, are equal and opposite, then these forces- A) May move the object. B) May stop a moving object. C) May move the object and also cause a change in its shape. D) Do not move the object but may cause a change in its shape. Show Answer Correct Answer: B) May stop a moving object. 50. The properity of liquid to exert an upward force on an object immersed in it is called as a ..... A) Force. B) Pressure. C) Buoyancy. D) Density. Show Answer Correct Answer: C) Buoyancy. 51. Which of the following is a PUSH force? A) Apple falling from a tree. B) Hitting a nail with a hammer. C) Catching a ball. D) Getting water from a well. Show Answer Correct Answer: B) Hitting a nail with a hammer. 52. The force exerted by a charged body on another charge: A) Non-contact force. B) Gravitational force. C) Contact force. D) Electrostatic force. Show Answer Correct Answer: D) Electrostatic force. 53. Name the pressure exerted by air around us. A) Thermal pressure. B) Adiabatic pressure. C) Atmospheric pressure. D) None of these. Show Answer Correct Answer: C) Atmospheric pressure. 54. Fruits falling from trees is an example of ..... A) Gravitational force. B) Muscular force. C) Frictional force. D) Electrostatic force. Show Answer Correct Answer: A) Gravitational force. 55. A force F acts on 4 different objects, having areas given below. In which case, the pressure exerted will be maximum? A) 10m$^{2}$. B) 20m$^{2}$. C) 100m$^{2}$. D) 50m$^{2}$. Show Answer Correct Answer: A) 10m$^{2}$. 56. Speed is a ..... quantity A) Vector. B) Scaler. C) Both. D) None of the above. Show Answer Correct Answer: B) Scaler. 57. North pole of a bar magnet repels the north pole of another bar magnet. the force acting is A) Non contact force. B) Contact force. C) Muscular force. D) Gravitational force. Show Answer Correct Answer: A) Non contact force. 58. Opening a door is an example of a A) (a) contact force. B) (b) non-contact force. C) (c) muscular force. D) Both (a) and (c). Show Answer Correct Answer: D) Both (a) and (c). 59. Which of the following is not the effect of force? A) Force can change the mass of an object. B) Force can stop a moving object. C) Force can change the shape of object. D) Force can change the size of the object. Show Answer Correct Answer: A) Force can change the mass of an object. 60. When two forces act in opposite directions, then net force acting two forces A) Sum of two factors. B) Difference between two factors. C) Both of these. D) None of these. Show Answer Correct Answer: B) Difference between two factors. ← PreviousNext →Related QuizzesScience QuizzesClass 8 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 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books