This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics Basics > Physics – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. With increasing frequency, at what intervals are resonance lengths found in a closed pipe? A) Quarter wavelengths. B) Every wavelength. C) Double wavelengths. D) Half wavelengths. Show Answer Correct Answer: D) Half wavelengths. 2. Pressure applied to a fluid is transmitted unchanged throughout the fluid. A) Archimedes' principle. B) Pascal's principle. C) Charles' law. D) Bernoulli's principle. Show Answer Correct Answer: B) Pascal's principle. 3. The specific heat of platinum is 0.133 J/g$^ \circ$C . How much heat(Q) is released when a 10 g piece of platinum cools from 100$^ \circ$C to 50$^ \circ$C? A) 665 J. B) 66.5 J. C) 0.0266 J. D) 0.665 J . How much heat(Q) is released when a 10 g piece of platinum cools from 100$^ \circ$C to 50$^ \circ$C?. Show Answer Correct Answer: B) 66.5 J. 4. A 9 kg blob moving at 5 m/s to the right collides and sticks to a second blob with a mass of 5 kg moving at 2 m/s to the right. If the two bobs stick together, with what velocity will the two blobs move? A) 2.5 m/s. B) 3.9 m/s. C) 2 m/s. D) 5 m/s. Show Answer Correct Answer: B) 3.9 m/s. 5. The diameter of a proton is of the order of magnitude of A) 10-18m. B) 10-15m. C) 10-12m. D) 10-21m. Show Answer Correct Answer: B) 10-15m. 6. An atom of oxygen has 8 protons and 10 electrons, this means the atom is ..... A) Positively charged because it has excess electrons. B) Negatively charged because it has excess electrons. C) Positively charged because it has a deficiency of electrons. D) Negatively charged because it has a deficiency of electrons. Show Answer Correct Answer: B) Negatively charged because it has excess electrons. 7. Physics variable for 198 N A) W. B) F. C) M. D) KE. Show Answer Correct Answer: B) F. 8. Which field of Physics is concerned with the study of heat and its effects on matter? A) Thermodynamics. B) Mechanics. C) Optics. D) Electromagnetism. Show Answer Correct Answer: A) Thermodynamics. 9. Equation for speed A) Distance / time. B) Distance x time. C) Time / distance. D) Distance + time. Show Answer Correct Answer: A) Distance / time. 10. Define the reference point A) Starting point of an object. B) Pull or push. C) Object's distanceand direction. D) None of above. Show Answer Correct Answer: A) Starting point of an object. 11. In a distance-time graph, the slope gives the A) The acceleration. B) The velocity (speed). C) The time taken. D) Distance travelled. Show Answer Correct Answer: B) The velocity (speed). 12. A lens of focal length 12 cm forms an erect image, three times the size of the object. The distance between the object and image is: A) 8 cm. B) 24 cm. C) 36 cm. D) 16 cm. Show Answer Correct Answer: A) 8 cm. 13. If all objects are moving as the exact same speed, which would have the greatest kinetic energy? A) Tennis ball. B) Football. C) Notebook. D) Box of 20 textbooks. Show Answer Correct Answer: D) Box of 20 textbooks. 14. A CONCAVE LENS OF SUITABLE FOCAL LENGTH IS USED FOR CORRECTING A: A) MYOPIC EYE. B) HYPERMETROPIC EYE. C) BOTH A & B. D) NEITHER A & B. Show Answer Correct Answer: A) MYOPIC EYE. 15. In which of the following situations do your arms do work on books? A) Holding a heavy stack of books while standing. B) Carrying a heavy stack of books. C) Dropping a stack of books onto a table. D) Picking up a pile of books from the floor. Show Answer Correct Answer: D) Picking up a pile of books from the floor. 16. A bug flies into the windshield of a car going the opposite way. Which of the following are true. A) The force of impact is the same for both. B) The impulse is the same for both. C) The acceleration of the bug is larger than the truck. D) A, B, and C are all true. Show Answer Correct Answer: D) A, B, and C are all true. 17. A ideal gas has a pressure of 100kPa and a volume of 5m3. If it is compressed to a volume of 2m3, what will the pressure of the gas be? A) 500kPa. B) 250kPa. C) 20kPa. D) 40kPa. Show Answer Correct Answer: B) 250kPa. 18. The force acting on a unit area on an object A) Pressure. B) Contact force. C) Non contact force. D) Density. Show Answer Correct Answer: A) Pressure. 19. When a racket hits a ball, energy is transferred from the racket's kinetic energy store to the ball's kinetic energy store. This energy is transferred ..... A) By heating. B) Electrically. C) Mechanically. D) None of above. Show Answer Correct Answer: C) Mechanically. 20. The half-life of a radioactive substance is 3 days. How much time is required for 10 g of the substance to decay until 1.25 g is left? A) 9 days. B) 12 days. C) 3 days. D) 6 days. Show Answer Correct Answer: A) 9 days. 21. What surface has more friction:ice or carpet? A) Carpet. B) Ice. C) They're the same. D) None of above. Show Answer Correct Answer: B) Ice. 22. Which Branch of Physics is most important when studying the effects of moving near the speed of light? A) Waves & Wave mechanics. B) Relativity. C) Electromagnetism. D) Quantum Mechanics. Show Answer Correct Answer: B) Relativity. 23. What does the author explain in this passage? A) The author explains the force of friction, using the different kinds of music as examples. B) The author explains the sport of soccer, using examples of current teams and players. C) The author explains the idea of motion, using different sports as examples. D) The author explains the importance of bike safety, using helmets as an example. Show Answer Correct Answer: C) The author explains the idea of motion, using different sports as examples. 24. What is physics? A) The study of inheritance. B) The study of matter. C) The study of the natural world. D) None of above. Show Answer Correct Answer: C) The study of the natural world. 25. NO FORCE ACTS ON A CURRENT CARRYING CONDUCTOR WHEN IT IS PLACED A) PERPENDICULAR TO THE MAGNETIC FIELD. B) PARALLEL TO THE MAGNETIC FIELD. C) FAR AWAY FROM THE MAGNETIC FIELD. D) INSIDE A MAGNETIC FIELD. Show Answer Correct Answer: B) PARALLEL TO THE MAGNETIC FIELD. 26. Uses for Infrared radiation A) View bones, kills bones, TV remotes. B) Tanning, blacklight, thermal imaging. C) TV remotes, cell phones, kills cancer cells. D) Telescopes, TV remotes, thermal imaging. Show Answer Correct Answer: D) Telescopes, TV remotes, thermal imaging. 27. What is the temperature in Kelvin of a material that is-28.0 C A) 273K. B) 245K. C) 28.0K. D) 0K. Show Answer Correct Answer: B) 245K. 28. Question 1. A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is A) Zero km. B) 30 km. C) 10 km. D) 50 km. Show Answer Correct Answer: B) 30 km. 29. Specific latent heat of vaporisation is A) The amount of heat required to change 1 kg of the substance from the solid to liquid phase without change in temperature. B) The amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature. C) The amount of heat required to change the temperature 1 kg of the substance by 1 degree Celcius. D) None of above. Show Answer Correct Answer: B) The amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature. 30. The radius of curvature of a mirror is 20cm the focal length is A) 20 cm. B) 5 cm. C) 40 cm. D) 10 cm. Show Answer Correct Answer: D) 10 cm. 31. Newton's Third Law states that ..... A) An object at rest, stays at rest; an object in motion stays in motion. B) Acceleration occurs when a force is exerted on an object. C) For every action, there is an equal and oppostite reaction. D) None of above. Show Answer Correct Answer: C) For every action, there is an equal and oppostite reaction. 32. Which of the following do you think travel in uniform velocity? A) A man running in a straight line. B) A car in a circular track. C) A car travelling at uniform speed in a traffic road. D) The Earth around the Sun. Show Answer Correct Answer: A) A man running in a straight line. 33. What does the prefix pico stand for? A) 10-12. B) 10 12. C) 10 9. D) 10-9. Show Answer Correct Answer: A) 10-12. 34. Newton's second law states that F=ma (force is mass times acceleration) which example would have the GREATEST? A) A 10 kg ball thrown with a 50 N force. B) A 1 kg ball thrown with a 0.5N force. C) A 50 kg student launched by a 100 N catapult. D) A) a 500 kg car accelerated by 1000 N from the engine. Show Answer Correct Answer: A) A 10 kg ball thrown with a 50 N force. 35. What is reflection? A) Reflection is the absorbing of light off the surface that it strikes on. B) Reflection is the scattering of light off the surface that it strikes on. C) Reflection is the bending of light off the surface that it strikes on. D) Reflection is the bouncing of light off the surface that it strikes on. Show Answer Correct Answer: D) Reflection is the bouncing of light off the surface that it strikes on. 36. Which one is an Earth Wire? A) Brown. Provides the alternating potential difference. B) Blue. Completes the circuit and carries away current. C) Green and Yellow. Only carries current when there is a fault. D) None of above. Show Answer Correct Answer: C) Green and Yellow. Only carries current when there is a fault. 37. What direction must a boat crew move the oars to move the boat forward? A) Forward and backward. B) Forward. C) Backward. D) None of above. Show Answer Correct Answer: C) Backward. 38. Cole is learning physics vocabulary. He knows that displacement means which of the following? A) Distance 1/2 way between starting and ending points. B) 2 times the speed of a nonmoving object. C) His change in position. D) The distance between starting and ending point. Show Answer Correct Answer: D) The distance between starting and ending point. 39. Bonus question:What is the process to gather information and test hypothesis? A) Hypothesis. B) Graph. C) Theory. D) Experiment. Show Answer Correct Answer: D) Experiment. 40. If William pushes a 75N sofa up a ramp that is 5 meters long, what is the amount of work that William does? A) 3 Newtons. B) 400 Joules. C) 375 Joules. D) 350 Joules. Show Answer Correct Answer: C) 375 Joules. 41. A hiker walks 5 kilometers due north and then 7 kilometers due east. A) 8.6 km. B) 12 km. C) 2 km. D) 12.6 km. Show Answer Correct Answer: A) 8.6 km. 42. After a balloon is rubbed against wool, the two objects will ..... each other because they have ..... charges A) Repel; opposite. B) Attract; like. C) Attract, opposite. D) Repel; like. Show Answer Correct Answer: C) Attract, opposite. 43. Write-4, 500, 000 in scientific notation. A) -4.5 x 106. B) -4.5 x 10-7. C) 4.5 x 10-6. D) 4.5 x 106. Show Answer Correct Answer: A) -4.5 x 106. 44. Express the following in scientific notation:1010.10 A) 1.01010 x 10-5. B) 1.01010 x 105. C) 1.01010 x 103. D) 1.01010 x 10-3. Show Answer Correct Answer: C) 1.01010 x 103. 45. A resultant force of 500N causes a body to accelerate at 20m/s2. What is the mass of the body? A) 10000kg. B) 2.5kg. C) 1000kg. D) 25kg. Show Answer Correct Answer: D) 25kg. 46. The speed of an object can be represented by: A) Distance-time graph or line graph. B) Bar graph. C) Pie chart. D) Histograms. Show Answer Correct Answer: A) Distance-time graph or line graph. 47. Which type of friction is the strongest? (has the greatest force) A) Kinetic friction (sliding friction). B) Rolling friction. C) Static friction. D) All forms of friction are equal for the same object. Show Answer Correct Answer: C) Static friction. 48. Formula for force A) F = d/a. B) F = m*a. C) F = d*a. D) F = m/a. Show Answer Correct Answer: B) F = m*a. 49. A horizontal, uniform board of weight 125 N and length 4 m is supported by vertical chains at each end. A person weighing 500 N is sitting on the board. The tension in the right chain is 250 N.How far from the left end of the board is the person sitting? A) 1.5 m. B) 3 m. C) 0.4 m. D) 2 m. E) 2.5 m. Show Answer Correct Answer: A) 1.5 m. 50. In a longitudinal wave, the particles move .....? A) Back and forth. B) Up and down. C) Not at all. D) At a 90 degree angle. Show Answer Correct Answer: A) Back and forth. 51. In which generator does the coil cuts the magnetic flux A) C generator. B) C generator. C) C generator and d.c generator. D) None of above. Show Answer Correct Answer: C) C generator and d.c generator. 52. When two objects are rubbed together, there is a transfer of electrons. How do you determine which object acquires the transferred electrons? A) Always transfer from the bigger to the smaller object, to make it even. B) Transfer is based on the initial charge of the two objects. C) Transfer is based on how much electron affinity that each object has. D) Always transfer from the more negative to the more positive object. Show Answer Correct Answer: C) Transfer is based on how much electron affinity that each object has. 53. Distance and direction of an object from its starting point A) Direction. B) Velocity. C) Displacement. D) Speed. Show Answer Correct Answer: C) Displacement. 54. The SI unit for measuring heat is the A) Calorie. B) Kelvin. C) Pascal. D) Joule. Show Answer Correct Answer: D) Joule. 55. At a constant temperature, the ..... and ..... of a gas of fixed mass are inversely proportional A) Pressure, volume. B) Pressure, area. C) Temperature, surface area. D) None of above. Show Answer Correct Answer: A) Pressure, volume. 56. You are given three media A, B and C of refractive index 1.33, 1.65 and 1.46. The medium in which the light will travel fastest is A) A. B) B. C) C. D) Equal in all three media. Show Answer Correct Answer: A) A. 57. Equation for weight A) Mass x gravitational force. B) Mass / gravitational force. C) Mass + gravitational force. D) Gravitational force / mass. Show Answer Correct Answer: A) Mass x gravitational force. 58. A student tries to magnetise a short steel rod. Which of these tests will show that he has been successful? A) Both ends of a permanent magnet attract the rod. B) One end of a permanent magnet repels the rod. C) The rod picks up a small piece of paper. D) When freely suspended, the rod points in any direction. Show Answer Correct Answer: B) One end of a permanent magnet repels the rod. 59. 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 above. Show Answer Correct Answer: A) Smaller area provides more pressure for the applied force. 60. If an owl has a speed of 50 m/s, and has a time of 10 s. What is the distance that the owl traveled? A) 500 m. B) 5 m. C) 10 m. D) None of above. Show Answer Correct Answer: A) 500 m. ← PreviousNext →Related QuizzesPhysics QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books