This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is NOT considered a method of heat transfer? A) Convection. B) Conduction. C) Diffusion. D) None of above. Show Answer Correct Answer: C) Diffusion. 2. A vector is directed towards the north with a very large magnitude. How will you describe the x-component? A) Equal to its y-component. B) Very large. C) Average. D) Zero. Show Answer Correct Answer: D) Zero. 3. What is the best definition for a "hypothesis" below. A) An opinion. B) A proposed explanation based on evidence as the starting point for further investigation. C) An observation of an event that is known to have happened. D) A set of rules that governs our universe. Show Answer Correct Answer: B) A proposed explanation based on evidence as the starting point for further investigation. 4. What is Jesus' name in the Quran? A) Jesu. B) Yesus. C) Isa. D) Yeshua. Show Answer Correct Answer: C) Isa. 5. The maximum displacement from equilibrium of a particle is 1 m and its maximum acceleration is 1.57 m s-2. The period of the particle will be A) 0.20 s. B) 0.63 s. C) 5.03 s. D) 1.25 s. Show Answer Correct Answer: C) 5.03 s. 6. Which of the following is a passive device? A) Rectifier. B) Capacitor. C) Transistor. D) Battery. Show Answer Correct Answer: B) Capacitor. 7. Which is a unit of acceleration? A) G/ cm3. B) N/ m. C) M / s. D) M / s2. Show Answer Correct Answer: D) M / s2. 8. The net force is A) The force you feel when you catch a fish in a net. B) The force acting upward on a sky diver. C) The combination of all of the forces acting on an object. D) Always unbalanced. Show Answer Correct Answer: C) The combination of all of the forces acting on an object. 9. Minimum number of unequal vectors which can give zero resultant are A) Three. B) One. C) Zero. D) Two. Show Answer Correct Answer: A) Three. 10. Which of the following refers to the function of a capacitor? A) It dissipates voltage across the circuit. B) It absorbs and stores electrical charge. C) It acts as the main source of electric potential. D) It allows DC signals to pass through. Show Answer Correct Answer: B) It absorbs and stores electrical charge. 11. If both the volume and the absolute temperature of a confined gas are doubled, the pressure will A) Not change. B) Be halved. C) Become four times as great. D) None of above. Show Answer Correct Answer: A) Not change. 12. Ampere-hour is the unit of which among the following? A) Amount of charge. B) Intensity of current. C) Energy. D) Power. Show Answer Correct Answer: A) Amount of charge. 13. Which is incorrect? A) M = mass defect (kg). B) C = speed of light. C) M = total mass (kg). D) E = energy released (J). Show Answer Correct Answer: C) M = total mass (kg). 14. Find the x-and y-components for a displacement vector that is 23.8 km and 45.0$^ \circ$ south of east. A) -16.8 km, +16.8 km. B) +16.8 km, +16.8 km. C) -16.8 km, +16.8 km. D) +16.8 km, -16.8 km. Show Answer Correct Answer: D) +16.8 km, -16.8 km. 15. A merry-go-round, initially at rest, rotates with a constant acceleration of 0.05 rad/s2 . What is the time interval required for it to reach a 23-rad displacement? A) 45 s. B) 35 s. C) 30 s. D) 40 s. Show Answer Correct Answer: C) 30 s. 16. How many meters are there in 500 centimeters? A) 0.50meters. B) 50meters. C) 5meters. D) 0.5meters. Show Answer Correct Answer: C) 5meters. 17. Charge on an electron is (in Coloumb) A) 1.6 $ \times$ $ 10^{-6}$. B) 1.6 $ \times$ $ 10^{-19}$. C) 1.56 $ \times$ $ 10^{-16}$. D) 6.610 $ \times$ $ 10^{-6}$. Show Answer Correct Answer: B) 1.6 $ \times$ $ 10^{-19}$. 18. What is t he curved path that an object follows when thrown or launched near the surface of the Earth? A) Terminal Velocity. B) Projectile Motion. C) Free Fall. D) Gravity. Show Answer Correct Answer: B) Projectile Motion. 19. If we have two resistors ( $ R_1$ = 5 $ \Omega$, $ R_2$ = 10 $ \Omega$ ) connected in parallel, then $ R_{eq}$ in ( $ \Omega$ ) is A) 50. B) 13. C) 3.33. D) 5. Show Answer Correct Answer: C) 3.33. 20. Yvonne was assigned to measure the size of the Santiago's basketball Court. She was able to obtain 19 meters for the length and 8.5 meters wide. With the details she has, what kind of quantity is it? A) Vector. B) Magnitude. C) Direction. D) Scalar. Show Answer Correct Answer: D) Scalar. 21. Which of the following is correct when the distance of an object covered is directly proportional to time? A) Uniform acceleration. B) Constant speed. C) Constant acceleration. D) Zero velocity. Show Answer Correct Answer: D) Zero velocity. 22. Which of the following values is equivalent to 0.150 m? A) 150 cm. B) 150 mm. C) 15 dm. D) 1500 $\mu$m. Show Answer Correct Answer: B) 150 mm. 23. An acceleration of 0 m/s2 indicates A) The object must be at rest. B) The object is moving at a constant velocity. C) The object is moving in a circle. D) None of above. Show Answer Correct Answer: B) The object is moving at a constant velocity. 24. Two vectors that are added together to produce a resultant are called the components of the resultant. A) True. B) Neither true nor false. C) Either true or false. D) False. Show Answer Correct Answer: C) Either true or false. 25. How many beams are there? A) 3. B) 5. C) 7. D) None of above. Show Answer Correct Answer: A) 3. 26. Which of the following is an electromagnetic wave? A) Infra red rays. B) Cathode rays. C) Sound wave. D) Ultrasonic wave. Show Answer Correct Answer: A) Infra red rays. 27. What is acceleration? A) The distance traveled by an object. B) A measure of speed. C) Speed in a certain direction. D) The rate velocity changes. Show Answer Correct Answer: D) The rate velocity changes. 28. A football field is 100.0 yards long. Express this distance in millimeters. 1 yard = 3 ft1 inch = 2.54 cm A) 91 440 mm. B) 762 mm. C) 84.67 mm. D) 9 144 mm. Show Answer Correct Answer: A) 91 440 mm. 29. Which of the following is the acceleration in horizontal direction of the projectile in motion? A) $ a=g$. B) $ a=-g$. C) $ a=v_i$. D) $ a=0$. Show Answer Correct Answer: D) $ a=0$. 30. This law states that when there is no net force applied to a body, it is in equillibrium. A) Law of Acceleration. B) Law of Inertia. C) Law of Interaction. D) Law of Gravity. Show Answer Correct Answer: B) Law of Inertia. 31. What is the most spoken (first) language in the world? A) Hindi. B) Mandarin. C) Spanish. D) English. Show Answer Correct Answer: B) Mandarin. 32. On rotating the analyzer if the intensity of light rays coming out of it varies from maximum to zero, then the incident beam of light is ..... A) Un-polarized. B) Partially polarized. C) Plane-polarized. D) Polarized. Show Answer Correct Answer: B) Partially polarized. 33. In what fields did Newton make revolutionary advances after returning home from Cambridge? A) Mathematics. B) Physics and astronomy. C) Optics. D) All above. Show Answer Correct Answer: D) All above. 34. The highness or lowness of a sound is the ..... A) Vibration. B) Loudness. C) Pitch. D) Resonance. Show Answer Correct Answer: C) Pitch. 35. What happens to work done as the angle between the force and displacement increases from zero to 90 degrees? A) It decreases. B) It increases. C) It stays the same. D) It is zero all throughout. Show Answer Correct Answer: A) It decreases. 36. The most commonly used frame of reference is A) Earth. B) The moon. C) The ocean. D) The sun. Show Answer Correct Answer: D) The sun. 37. An object at rest will ..... if no outside forces are applied. A) Stay at rest. B) Increase Velocity. C) Decrease Mass. D) None of above. Show Answer Correct Answer: A) Stay at rest. 38. A bicycle has an average speed of 2 m/sec. this means ..... A) In 2 second, it travels 1 meter. B) It can travel 4 meters in 2 seconds. C) It can travel 2 kilometers in one hour. D) It takes 2 seconds to travel 1 meter. Show Answer Correct Answer: B) It can travel 4 meters in 2 seconds. 39. According to Ohm's Law, current equals the voltage divided by the ..... A) Inductance. B) Resistance. C) Conductance. D) Capacitance. Show Answer Correct Answer: B) Resistance. 40. Which of the following is the discovery of sir CV Raman A) Television. B) Raman spectroscopy. C) Telescope. D) Raman effect. Show Answer Correct Answer: D) Raman effect. 41. When water is heated from 0$^ \circ$ Celsius to 100$^ \circ$Celsius, the volume of water A) Increase gradually. B) Degrease gradually. C) First increase, then decrease. D) First decrease, then increase. Show Answer Correct Answer: D) First decrease, then increase. 42. When the resulting vector has an x-component positive and y-component angle, then at what direction will the angle be? A) West of North. B) South of West. C) North of East. D) East of South. Show Answer Correct Answer: D) East of South. 43. On a rainy day, small oil films on water show brilliant colours. This is due to A) Dispersion. B) Interference. C) Polarization. D) Diffraction. Show Answer Correct Answer: B) Interference. 44. What will happen if you hold a polarized sunglass in front of you and rotate them. While looking at the blue sky, you will see the sky get ..... A) Brighter. B) Dimmer. C) Invisible. D) Brighter and dimmer. Show Answer Correct Answer: D) Brighter and dimmer. 45. Course along which someone or something moves A) Person. B) Movement. C) Direction. D) Speed. Show Answer Correct Answer: C) Direction. 46. The massin (kg) of a block of wood if its volume ( $ V=0.05\ m^3$ ) anddensity ( $ \rho=600\ \frac{kg}{m^3}$ )is A) 30. B) 60. C) 12000. D) 50. Show Answer Correct Answer: A) 30. 47. Which best describes why the moon orbits the Earth ..... according to General Relativity? A) Gravity force from the Earth pulls on the moon. B) Gravity force from the Earth pushes on the moon. C) The moon moves around the curvature in spacetime created by the Earth's mass. D) None of above. Show Answer Correct Answer: C) The moon moves around the curvature in spacetime created by the Earth's mass. 48. Out of the following pairs, which one does not have identical dimension? A) Work and Torque. B) Impulse and Momentum. C) Moment of inertia and moment of a force. D) Angular momentum and Planck's constant. Show Answer Correct Answer: C) Moment of inertia and moment of a force. 49. What is displacement? A) Longest distance covered by a body in a random direction. B) Shortest distance covered by a body in a random direction. C) Shortest distance covered by a body in a definite direction. D) Longest distance covered by a body in a definite direction. Show Answer Correct Answer: C) Shortest distance covered by a body in a definite direction. 50. The following value that could be an index of refraction of a transparent material is A) 1.5. B) 0.9. C) -1.3. D) 0.5. Show Answer Correct Answer: A) 1.5. 51. Chandrayaan-2 Mission was launched by which vehicle? A) GSLV F11. B) PSLV C45. C) GSLV MKIII. D) PSLV C11. Show Answer Correct Answer: C) GSLV MKIII. 52. Which procedure should NOT be considered in finding the resultant vector graphically? A) Use component method. B) Use head to tail method. C) Use ruler and protractor. D) Use scale. Show Answer Correct Answer: D) Use scale. 53. The mass per unit volume is the A) Pressure. B) Viscosity. C) Density. D) Surface tension. Show Answer Correct Answer: C) Density. 54. What is the unit of measurement used for power? A) Amps. B) Volts. C) Watts. D) None of above. Show Answer Correct Answer: C) Watts. 55. Which of the following is the SI unit for Luminous Intensity? A) Ampere. B) Kelvin. C) Candela. D) Mole. Show Answer Correct Answer: C) Candela. 56. Select the correct one about oxygen A) Oxygen is dissolved in water. B) Oxygen is harmful for us. C) Oxygen is 30 percent in air. D) None of above. Show Answer Correct Answer: A) Oxygen is dissolved in water. 57. The force of ..... is a type of friction that works against the motion of falling objects. A) Terminal Velocity. B) Air Resistance. C) Wind. D) Gravity. Show Answer Correct Answer: B) Air Resistance. 58. Which of the following is the definition of vector? A) A quantity that has only magnitude. B) A quantity that has both magnitude and direction. C) A quantity that has only one direction. D) A quantity that has magnitude but may or may not have direction. Show Answer Correct Answer: C) A quantity that has only one direction. 59. When distance increases, electrostatic force ..... ; we call this relationship ..... proportional A) Increases;inversely. B) Increases;directly. C) Decreases;inversely. D) Decreases;directly. Show Answer Correct Answer: C) Decreases;inversely. 60. Electrical forces ..... A) Can cause objects to only attract each other. B) Have no effect on objects. C) Can cause objects to attract or repel each other. D) Can cause objects to only repel each other. Show Answer Correct Answer: C) Can cause objects to attract or repel each other. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 8Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books