This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics Basics > Physics – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Two tyres of a tractor are very wide and huge because A) Pressure increase when area increases. B) Pressure reduces when area increases. C) None of the above. D) None of above. Show Answer Correct Answer: B) Pressure reduces when area increases. 2. A ALPHA PARTICLE IS DIVERTED TOWARD WEST IS DEFLECTED TOWARDS NORTH BY A FIELD . THE FIELD IS MAGNETIC . WHAT WILL BE THE DIRECTION OF FIELD? A) TOWARD SOUTH. B) DOWNWARD. C) UPWARD. D) TOWARD EAST. Show Answer Correct Answer: C) UPWARD. 3. Is directly proportional to work and inversely to time A) Energy. B) Power. C) Force. D) None of above. Show Answer Correct Answer: B) Power. 4. AS YOU MOVE AWAY FROM A CONVEX MIRROR, ITS IMAGE BECOME ..... AND MOVES TOWARD ..... A) SMALLER, INFINITY. B) SMALLER, FOCUS. C) ENLARGED, INFINITY. D) ENLARGED, FOCUS. Show Answer Correct Answer: B) SMALLER, FOCUS. 5. This energy is transferred through air particles. A) Chemical Energy. B) Sound Energy. C) Nuclear Energy. D) None of above. Show Answer Correct Answer: B) Sound Energy. 6. As a ray light ray travels from a less dense to a more dense optical medium (e.g. air to glass) A) The incident ray bends towards the normal. B) The incident ray travels straight on. C) The incident ray travels down the normal. D) The incident ray bends away from the normal. Show Answer Correct Answer: A) The incident ray bends towards the normal. 7. Dentist use to see an enlarged image of the teeth is ..... mirror A) Plane. B) Convex. C) Concave. D) None of these. Show Answer Correct Answer: C) Concave. 8. A sealed container of air is kept at a constant temperature. What will happen to the speed of the molecules of air in the container as time passes? A) The molecules will all reach the same speed. B) Some molecules will speed up and others will slow down, but the average speed will be constant. C) The molecules will slow down. D) There will be no change. Show Answer Correct Answer: B) Some molecules will speed up and others will slow down, but the average speed will be constant. 9. In which of the following cases of motions, the distance moved and the magnitude of the displacement are equal? i. If the car is moving on a straight roadii. If the car is moving in circular pathiii. The pendulum is moving to and froiv. The earth is moving around the sun A) Only(ii). B) (i) and (iii). C) (ii) and (iv). D) Only (i). Show Answer Correct Answer: D) Only (i). 10. What is the base unit for measuring time? A) Seconds. B) Days. C) Minutes. D) Hours. Show Answer Correct Answer: B) Days. 11. A monochromatic light beam with a quantum energy of 9.0 eV is incident upon a photocell. The work function of the photocell is 4.1 eV. What is the maximum kinetic energy of the electron. A) 4.7 eV. B) 4.4 eV. C) 4.9 eV. D) 4.2 eV. Show Answer Correct Answer: C) 4.9 eV. 12. Gravity is ..... A) The speed in which an object travels. B) The force that pulls things together. C) The weight and mass of an object. D) None of above. Show Answer Correct Answer: B) The force that pulls things together. 13. Physics has been around for ..... A) 100 years. B) 500 years. C) Several thousand years. D) None of above. Show Answer Correct Answer: C) Several thousand years. 14. Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the correct number of significant figures. A) 11 cm3. B) 11. cm3. C) 10 cm3. D) 11.1 cm3. Show Answer Correct Answer: C) 10 cm3. 15. Solve and round accordingly. "730 / 1.89" A) 390. B) 386.24. C) 386. D) 386.243. Show Answer Correct Answer: A) 390. 16. When an object is on an inclined plane what is the force holding the object from sliding down? A) Applied force. B) Normal. C) Friction. D) Gravity. Show Answer Correct Answer: C) Friction. 17. As an object's mass increases, its gravitational pull will ..... A) Increase. B) Decrease. C) Get weaker. D) Stay the same. Show Answer Correct Answer: A) Increase. 18. Uses which prefix? A) Mili. B) Cm. C) Deci. D) Micro. Show Answer Correct Answer: B) Cm. 19. Kinetic energy is calculated using A) M x g x h. B) 1/2 mass x velocity x velocity. C) 1/2 mass x velocity. D) Force x distance. Show Answer Correct Answer: B) 1/2 mass x velocity x velocity. 20. Which is an example of potential energy? A) A girl on a diving board. B) A boy swimming. C) A girl hitting a volleyball. D) A boy running around the pool. Show Answer Correct Answer: A) A girl on a diving board. 21. Water freezes at temperature.. A) 0. B) 12. C) 35. D) 45. Show Answer Correct Answer: A) 0. 22. Equation for electrical power A) Voltage + current. B) Current / voltage. C) Voltage / current. D) Voltage x current. Show Answer Correct Answer: D) Voltage x current. 23. Food, batteries, and fuel such as gasoline are similar because they are sources of ..... energy. A) Chemical energy. B) Mechanical energy. C) Heat energy. D) Kinetic energy. Show Answer Correct Answer: A) Chemical energy. 24. What is the correct equation for calculating a moment? A) Moment = perpendicular distance / force. B) Moment = force / perpendicular distance. C) Moment = force x perpendicular distance. D) None of above. Show Answer Correct Answer: C) Moment = force x perpendicular distance. 25. It is a branch of physics that is concerned with the structure and properties of the atomic nucleus, and with nuclear reactions and their applications. A) Classical Mechanics. B) Nuclear Physics. C) Thermodynamics. D) Quantum Mechanics. Show Answer Correct Answer: B) Nuclear Physics. 26. The speedometer of a car shows which of the following? A) Instantaneous Speed. B) Uniform speed. C) Non uniform speed. D) Distance. E) Average Speed. Show Answer Correct Answer: A) Instantaneous Speed. 27. Isabella runs 2 miles down the road from her house in 15 minutes and then walks 2 miles home over 1 hour. What is her total displacement? A) 0. B) 4 miles. C) 2 miles. D) 15 minutes in one hour. Show Answer Correct Answer: A) 0. 28. A person is pushed forward into their seatbelt when a car stops. Which of Newton's laws explains this motion? A) 1st law. B) 2nd law. C) 2 and 3 law. D) 3rd law. Show Answer Correct Answer: A) 1st law. 29. In a physics experiment, two carts of mass 1.5 kg each are rolled towards each other. The orange cart has a speed of 2 m/s and the blue cart has an unknown initial speed. The carts stick together when they collide and move at 0.5 m/s, in the same direction as the blue cart. Calculate the unknown initial speed of the blue cart. A) 3 m/s. B) 2.33 m/s. C) 4.5 m/s. D) 1.0 m/s. Show Answer Correct Answer: A) 3 m/s. 30. In the wave equation, lambda is: A) The velocity of the wave. B) The wavelength. C) The frequency of the wave. D) The amplitude of the wave. Show Answer Correct Answer: B) The wavelength. 31. Electrical current is: A) The flow of charge. B) The flow of ions. C) The flow of neutrons. D) The flow of electrons. Show Answer Correct Answer: A) The flow of charge. 32. Temperature is a measure of the ..... A) Average kinetic energy of molecules in a substance. B) Total energy in a substance. C) Total kinetic energy in a substance. D) Average potential energy in a substance. Show Answer Correct Answer: A) Average kinetic energy of molecules in a substance. 33. When a roller coaster reaches the bottom of a steep slope, it has- A) Low PE and high KE. B) High PE and low KE. C) Low PE and low KE. D) High PE and high KE. Show Answer Correct Answer: A) Low PE and high KE. 34. Inertia is ..... A) The tendency of an object to resist changes in velocity. B) Objects in motion stay in motion, objects at rest stay at rest. C) The tendency of an object to resist changes in acceleration. D) The tendency of an object to change its acceleration. Show Answer Correct Answer: A) The tendency of an object to resist changes in velocity. 35. A train traveling 60 mph slows down as it comes to a stop. This is an example of ..... A) Distance. B) Speed. C) Acceleration. D) Velocity. Show Answer Correct Answer: C) Acceleration. 36. If there are two forces going in the same direction how would you find the net force? A) Add. B) Subtract. C) Multiply. D) Neither. Show Answer Correct Answer: A) Add. 37. When light of specific frequencies is shined on a surface, electrons are ejected from the surface. This is the idea behind ..... A) Uncertainty Principle. B) DeBroglie Waves. C) Photoelectric Effect. D) Compton Effect. E) Quantization of Energy. Show Answer Correct Answer: C) Photoelectric Effect. 38. Right Hand Fleming method is used A) To determine the direction of induce current in a conductor rod. B) To determine the poles of magnet at the end of a solenoid. C) To determine the direction of induce current in a coil of solenoid. D) To determine the direction of induce current in a d.c motor. Show Answer Correct Answer: A) To determine the direction of induce current in a conductor rod. 39. In a race, a car travels 60 times around a 3.6km track. This takes 2.4 hours. What is the average speed of the car? A) 216 km/h. B) 1.5 km/h. C) 144 km/h. D) 90 km/h. Show Answer Correct Answer: D) 90 km/h. 40. SI unit for length A) Cm. B) Mm. C) M. D) Km. Show Answer Correct Answer: C) M. 41. How much energy does 10.0 kg of liquid water require to go from 15C to 95C? (specific heat capacity of liquid water is 4200J/kgC) A) 1.08x104. B) 3.36x106J. C) 1.68x106J. D) 3.36x106kJ. Show Answer Correct Answer: B) 3.36x106J. 42. What is the approximate value of the Earth's gravitational field strength in N/kg? A) 1000. B) 100. C) 1. D) 10. Show Answer Correct Answer: D) 10. 43. A reflecting surface is curved outwards. Which of the following mirrors is it likely to be? A) Concave. B) Plane. C) Convex. D) All of the above. Show Answer Correct Answer: C) Convex. 44. A ball rolls down a steep hill. It travels 500 m in 1 minute. It then rolls on a flat surface for an additional 3 minutes and travels 300 m. What is the average speed of the ball? A) 200 m/min. B) 200 m/sec. C) .5 m/min. D) 100 m/min. Show Answer Correct Answer: A) 200 m/min. 45. Newton's 2nd Law of Motion states ..... A) Force equals mass times acceleration. B) Objects in motion stay in motion unless acted upon by an outside force. C) Every action has an equal and opposite reaction. D) All objects are required to have a gravitational force. Show Answer Correct Answer: A) Force equals mass times acceleration. 46. A graph is shown below. What does the area of the shaded portion in the graph represent? A) Uniform motion. B) Distance. C) Speed. D) Time. Show Answer Correct Answer: B) Distance. 47. A radioactive decay is random and spontaneous because A) It is not influenced by temperature, pressure and other physical factors. B) It is influenced by temperature, pressure and other physical factors. C) It can change to other elements. D) It can happen anywhere. Show Answer Correct Answer: A) It is not influenced by temperature, pressure and other physical factors. 48. Energy stored in the height of an object is called ..... potential energy. A) Elastic. B) Chemical. C) Nuclear. D) Gravitational. Show Answer Correct Answer: D) Gravitational. 49. Is directly proportional to the mass and velocity A) Momentum. B) Acceleration. C) Force. D) None of above. Show Answer Correct Answer: A) Momentum. 50. Unit of displacement (x or d) A) Kg. B) M/s. C) M. D) M/s2. Show Answer Correct Answer: C) M. 51. Branches of physics that deals with the bahaviour of objects and systems in response to various force A) Acoustics. B) Mechanics. C) Thermodynamics. D) Optics. Show Answer Correct Answer: B) Mechanics. 52. Equation for wave speed A) Frequency + wavelength. B) Frequency / wavelength. C) Frequency-wavelength. D) Frequency x wavelength. Show Answer Correct Answer: D) Frequency x wavelength. 53. When red light is compared with violet light, A) Both have the same frequency. B) Both have the same wavelength. C) Both travel at the same speed. D) Red light travels faster than violet light. Show Answer Correct Answer: C) Both travel at the same speed. 54. When a solid slides over a solid. A) Sliding Friction. B) Rolling Friction. C) Fluid Friction. D) None of above. Show Answer Correct Answer: A) Sliding Friction. 55. When an object gains electrons it becomes ..... A) Neutral. B) Positively charged. C) Negatively charged. D) None of above. Show Answer Correct Answer: C) Negatively charged. 56. Indicate which of the following physics symbols is NOT considered a variable? A) T. B) T. C) C. D) C. Show Answer Correct Answer: C) C. 57. Equation for work done A) Distance / force. B) Force x distance. C) Force / distance. D) Force-distance. Show Answer Correct Answer: B) Force x distance. 58. Which of the following physics symbols denote units? A) C. B) Y. C) J. D) T. Show Answer Correct Answer: C) J. 59. At a constant pressure, the ..... of a gas of fixed mass is directly proportional to its ..... A) Absolute temperature, specific heat capacity. B) Volume, absolute temperature. C) Surface area, volume. D) None of above. Show Answer Correct Answer: B) Volume, absolute temperature. 60. Choose the wrong statement'Gamma rays are ..... ' A) Low frequency electromagnetic wave. B) Not charged. C) Neutral. D) Rays with no mass. Show Answer Correct Answer: A) Low frequency electromagnetic wave. ← PreviousNext →Related QuizzesPhysics QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books