This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In the noon the shadow will be? A) Shorter. B) Longer. C) Middium. D) None of above. Show Answer Correct Answer: A) Shorter. 2. Which of the following components is constant under projectile motion? A) Vertical velocity. B) Horizontal acceleration. C) Horizontal velocity. D) Horizontal displacement. Show Answer Correct Answer: C) Horizontal velocity. 3. Express 23400 in proper scientific notation. A) 2.3 x 10 3. B) 2.34 x 10 4. C) 2.34 x 10 3. D) 2.30 x 10 5. Show Answer Correct Answer: B) 2.34 x 10 4. 4. The mass which is lost during the decay is called the A) Mass of proton. B) Effective mass. C) Mass. D) Mass defect. Show Answer Correct Answer: D) Mass defect. 5. What is the SI unit of measurement for force? A) Newtons. B) Kilograms. C) Lbf. D) $m/sec^2 $. Show Answer Correct Answer: A) Newtons. 6. The equation for Ohm's Law is A) $ R\ =\ \frac{I}{V}$. B) $ V\ =\ I\ R$. C) $ V\ =\ \frac{I}{R}$. D) $ V\ =\ \frac{R}{I}$. Show Answer Correct Answer: B) $ V\ =\ I\ R$. 7. The distance between two charges doubles at the same time that the charge on each also doubles. What happens to the electric force? A) Doubles. B) Cut in half. C) Quadruples. D) No change. Show Answer Correct Answer: D) No change. 8. What electromagnetic wave . has . the shortest wavelengths and the highest frequencies? A) X Rays. B) Ultraviolet Rays. C) Radio Waves. D) Gamma Rays. Show Answer Correct Answer: D) Gamma Rays. 9. An ice crystal falls vertically from a cloud. What happens to the acceleration of the ice crystal as it falls? A) It increases because of air resistance. B) It decreases because of air resistance. C) It increases because of gravity. D) It decreases because of gravity. Show Answer Correct Answer: B) It decreases because of air resistance. 10. The angle of incidence of a light ray that strikes a mirror is 40 degrees. What will be its angle of reflection? A) 20 degrees. B) 40 degrees. C) 60 degrees. D) 80 degrees. Show Answer Correct Answer: B) 40 degrees. 11. At what temperature will the density of water be maximum? A) - 4$^ \circ$C. B) 0$^ \circ$C. C) 32$^ \circ$C. D) 4$^ \circ$C. Show Answer Correct Answer: D) 4$^ \circ$C. 12. Clocks closer to a gravitational source run ..... A) Slower. B) Faster. C) The same. D) None of above. Show Answer Correct Answer: A) Slower. 13. What is the number of wavefronts per second that pass a fixed point? A) Speed. B) Wavelength. C) Frequency. D) Amplitude. Show Answer Correct Answer: C) Frequency. 14. If x =-2 and y = 5, then 3x2y = A) 180. B) -60. C) 60. D) -180. Show Answer Correct Answer: C) 60. 15. What year did Einstein complete General Relativity? A) 1922. B) 1916. C) 1905. D) 1919. Show Answer Correct Answer: B) 1916. 16. Physical quantities derived from base quantities through multiplication, division or a combination of both operations are A) Physical quantities. B) Base quantities. C) Scalar quantities. D) Derived quantities. Show Answer Correct Answer: D) Derived quantities. 17. If doubling the voltage across a resistor doubles the current through the resistor, then A) The resistor value did not change. B) The resistor value increased. C) The resistor value decreased. D) It is impossible to determine the change in the resistor value. Show Answer Correct Answer: A) The resistor value did not change. 18. Chinese ophthalmologist ..... who had first shared suspicion of a Sars-like illness spreading in Wuhan, died after he was infected by the coronavirus. A) Tanny wang. B) Lee wang. C) Bruce lee. D) Li Wenliang. Show Answer Correct Answer: D) Li Wenliang. 19. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from A) East. B) Northeast. C) Southeast. D) West. Show Answer Correct Answer: A) East. 20. How could we describe the relationship between force and extension for an object that shows elastic deformation? A) Inversely proportional. B) No relationship. C) Directly proportional. D) Positive correlation. Show Answer Correct Answer: C) Directly proportional. 21. What material is a resistor made of? A) Glass. B) Mica. C) Carbon. D) Graphite. Show Answer Correct Answer: C) Carbon. 22. A measure of the resistance of a fluid or the fluid's internal resistance to flow is A) Viscosity. B) Pressure. C) Surface tension. D) Density. Show Answer Correct Answer: A) Viscosity. 23. The measure of the rate of the flow of charge (Q) through a circuit in a unit of time (t). A) Ohm's Law. B) Electric Circuit. C) Electric Current. D) Resistance. Show Answer Correct Answer: C) Electric Current. 24. What will be the units of F (or Fe)? A) Meters. B) Coulombs. C) Newtons. D) Joules. Show Answer Correct Answer: C) Newtons. 25. What is polarized light? A) Where the magnetic field component oscillates in one plane. B) When waves oscillate in one direction. C) Where electric field component oscillates in one plane. D) Where waves oscillate in one plane. Show Answer Correct Answer: B) When waves oscillate in one direction. 26. This is a requirement for heat transfer to occur between two objects (e.g. already in contact with each other). A) Temperature difference. B) Thermal Equilibrium. C) Thermal Insulation. D) Temperature Increase. Show Answer Correct Answer: A) Temperature difference. 27. A wing with very high aspect ratio (in comparison with low aspect ratio wing) will have. A) Increased drag at high angles of attack. B) A low stall speed. C) Poor control qualities at low airspeeds. D) None of above. Show Answer Correct Answer: B) A low stall speed. 28. Temperature is generally proportional to a substance's A) Vibrational kinetic energy. B) Average translational kinetic energy. C) Rotational kinetic energy. D) Thermal energy. Show Answer Correct Answer: B) Average translational kinetic energy. 29. An object travels a distance of 12.8 m in 15 seconds. What is its average velocity? A) 1.17 m/s. B) 0.85 m/s. C) 12.8 m/s. D) 15 m/s. Show Answer Correct Answer: B) 0.85 m/s. 30. A merry-go-round starts at rest and builds up to a final angular speed of 0.34 rad/s while rotating through an angular displacement of 1.9 rad. What is its average angular acceleration? A) 0.08 rad/$s^2$. B) 0.13 rad/$s^2$. C) 0.18 rad/$s^2$. D) $ 0.03\ \frac{rad}{s^2}$. Show Answer Correct Answer: D) $ 0.03\ \frac{rad}{s^2}$. 31. If there are about 3 feet in 1 meter, then 25 meters is about A) 4.5 feet. B) 75 feet. C) 8 feet. D) 450 feet. Show Answer Correct Answer: B) 75 feet. 32. An electrostatic force of 2 X 102. newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is A) 50 N/C. B) 2 X 10-2 N/C. C) 5 N/C. D) 8 X 102 N/C. Show Answer Correct Answer: A) 50 N/C. 33. Which planet is nearest to the earth? A) Jupiter. B) Mercury. C) Mars. D) Venus. Show Answer Correct Answer: C) Mars. 34. All of the following are base units of the SI system except A) Kelvin. B) Volt. C) Kilogram. D) Meter. Show Answer Correct Answer: B) Volt. 35. Which must be decreased in order to change the period of a pendulum from 1.5 s to 1 s? A) Mass of the bob. B) Tension. C) Length of the string. D) Amplitude. Show Answer Correct Answer: C) Length of the string. 36. Rio de Grande river has a total length of 505 km . What is this length in m? A) 50 500 m. B) 5.07 x 107 m. C) 5 050 000 m. D) 5.05 x 105 m. Show Answer Correct Answer: D) 5.05 x 105 m. 37. If the volume of a confined gas is doubled (without the addition of more gas), the pressure will (assume the temperature remains constant) A) Increase In direct proportion to the volume increase. B) Remain the same. C) Be reduced to one half its original value. D) None of above. Show Answer Correct Answer: C) Be reduced to one half its original value. 38. Who discovered X-Rays? A) J. J. Thomson. B) Roentgen. C) Madam Curie. D) Einstein. Show Answer Correct Answer: B) Roentgen. 39. A telescope and microscope differ in that..... A) Telescope has objective of large focal length and eyepiece of smaller focal lengths. B) Telescope's eyepiece with longer focal lengths that the oblective. C) Both are different instruments. D) None of these. Show Answer Correct Answer: A) Telescope has objective of large focal length and eyepiece of smaller focal lengths. 40. Which of the following shows a fast speed? A) 1m/s. B) 5m/s. C) 4m/s. D) 3m/s. Show Answer Correct Answer: B) 5m/s. 41. What force/s acting on the rock sitting on top of the hill? A) Weight. B) Normal Force. C) Both Weight and Normal Forces. D) Neither Weight nor Normal Forces. Show Answer Correct Answer: C) Both Weight and Normal Forces. 42. Nichrome wire is used in an electric heater because..... A) It has high resistance. B) It has high melting point. C) For all of the above reasons. D) It can resist a current upto approx 5 amperes. Show Answer Correct Answer: C) For all of the above reasons. 43. If you traveled to Jupiter, what would change? A) Your weight and mass. B) Your weight. C) Your mass. D) Your height. Show Answer Correct Answer: B) Your weight. 44. Which of the following is a longitudinal wave A) Sound wave. B) Infra-red. C) Tidal wave. D) Radio wave. Show Answer Correct Answer: A) Sound wave. 45. Which of the following quantities does not belong to the group? A) Force. B) Length. C) Time. D) Mass. Show Answer Correct Answer: A) Force. 46. Convert 22 m/s into km/hr A) 6.1 km/hr. B) 44 km/hr. C) 89 km/hr. D) 79 km/hr. Show Answer Correct Answer: D) 79 km/hr. 47. Which of these is a scientific hypothesis? A) Atoms are the smallest particles of matter that exist. B) Albert Einstein is the greatest physicist of the twentieth century. C) The universe is surrounded by a second universe, which cannot be seen. D) None of these. Show Answer Correct Answer: A) Atoms are the smallest particles of matter that exist. 48. Which of the following is acceleration? A) 50 cm2/s2. B) 46 km/h. C) 64 km/h/min. D) 10 m/s. Show Answer Correct Answer: B) 46 km/h. 49. In a speed vs. time graph, a straight line shows that acceleration is A) Constatnt. B) Zero. C) Increasing. D) Decreasing. Show Answer Correct Answer: A) Constatnt. 50. UNIT OF DISPLACEMENT IS A) NEWTON. B) SEC. C) METER. D) KG. Show Answer Correct Answer: C) METER. 51. What will happen to the change in momentum if the force of impact between two objects that collided is tripled? A) It will be 1/3 the original value. B) It will be tripled. C) It will be halved. D) It will be doubled. Show Answer Correct Answer: B) It will be tripled. 52. What is the measure of an object's ability to store electric charge? A) Dielectric. B) Capacitance. C) Capacitor. D) Electric charge. Show Answer Correct Answer: B) Capacitance. 53. What is the unit use in vertical and horizontal velocities of components of projectile motion? A) Meter second. B) Meter. C) Meter per second. D) Meter per second square. Show Answer Correct Answer: C) Meter per second. 54. What happens to gravitational waves the further you are away from the source? A) Nothing. B) They become more noticeable. C) They get stronger. D) They get weaker. Show Answer Correct Answer: D) They get weaker. 55. A device that changes electrical energy to mechanical energy that can do work is A) Resistor. B) Generator. C) Motor. D) Mass Spectrometer. Show Answer Correct Answer: C) Motor. 56. Which list contains only transverse waves? A) Light waves, sound waves, ultraviolet waves. B) Infra-red waves, sound waves, ultraviolet waves. C) Infra-red waves, light waves, ultraviolet waves. D) Infra-red waves, light waves, sound waves. Show Answer Correct Answer: C) Infra-red waves, light waves, ultraviolet waves. 57. Let a thin capillary tube be replaced with another tube of insufficient length then, we find water A) Depressed. B) Change its meniscus. C) Will not rise. D) Will overflow. Show Answer Correct Answer: C) Will not rise. 58. An object that is accelerating may be ..... A) Speeding up. B) Slowing down. C) Turning around. D) All of these answers. Show Answer Correct Answer: D) All of these answers. 59. The magnitude of a null vector is A) 2. B) 0. C) 1. D) 10. Show Answer Correct Answer: B) 0. 60. What effect on the human body does 10-20 mA of electric current can make? A) Muscular contraction. B) Ventricular fibrillation. C) Electrodes stick to the body. D) No effect. Show Answer Correct Answer: C) Electrodes stick to the body. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 7Physics Quiz 8Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books