This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics Basics > Physics – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How high or low a sound is; depends on the frequency (greater frequency= higher pitch) A) Pitch. B) Medium. C) Sound. D) Frequency. Show Answer Correct Answer: A) Pitch. 2. Miguel is lifting a 120 kg mass from the floor to a height of 2.50 m during gym class. The gravitational potential energy of the weight when it is lifted is A) 4.70 x 102 J. B) 2.94 x 103 J. C) 3.00 x 102J. D) 30.6 J. Show Answer Correct Answer: B) 2.94 x 103 J. 3. Express the following in scientific notation:.000457 A) 457 x 10-6. B) 4.57 x104. C) 457 x 106. D) 4.57 x 10-4. Show Answer Correct Answer: D) 4.57 x 10-4. 4. The function of graphite in a nuclear reactor is to A) Absorb heat produced. B) Conduct electricity. C) Slow down neutrons. D) Acts as a catalyst. Show Answer Correct Answer: C) Slow down neutrons. 5. A black body can emit thermal radiation depending on its..... A) Volume I Spadur. B) PressureTekanan. C) Light intensity Speed of light. D) TemperatureSuhu. Show Answer Correct Answer: D) TemperatureSuhu. 6. An experiment was carried out to investigate the relationship between the period of a simple pendulum and its length. A brass bob of 50g was used in the experiment. What is the manipulated variable? A) Period of the simple pendulum. B) Mass of brass bob. C) Length of pendulum. D) Amplitude. Show Answer Correct Answer: C) Length of pendulum. 7. The correct equation to calculate average speed is A) Total distance/total time. B) Distance x time. C) Time/distance. D) Distance/time. Show Answer Correct Answer: A) Total distance/total time. 8. A stable well-designed racing car must have A) Narrow wheel base. B) Long front. C) Low centre of gravity. D) Double exhausts. Show Answer Correct Answer: C) Low centre of gravity. 9. J of energy is supplied to a toaster with an efficiency of 25%. What is the useful output of the toaster? A) 200 J. B) 775 J. C) 1000 J. D) None of above. Show Answer Correct Answer: A) 200 J. 10. How long will your trip take (in hours) if you travel 350 km at an average speed of 80 km/hr? A) 6. B) 4.38 hours. C) .22 hours. D) 80 hours. Show Answer Correct Answer: B) 4.38 hours. 11. When plants convert the sun's energy into food, which type of energy is it? A) Kinetic. B) Chemical. C) Thermal. D) Radiant. Show Answer Correct Answer: B) Chemical. 12. Acts between any charged particles, can be attractive (opposite charges), or repulsive (like charges). It has an infinite range and is relatively strong. A) Strong nuclear. B) Gravitational. C) Electrostatic. D) Weak nuclear. Show Answer Correct Answer: C) Electrostatic. 13. Which friction coefficient would most likely describe tape sticking to a wood wall? A) 0.300. B) 0.900. C) 0.050. D) 0.600. Show Answer Correct Answer: B) 0.900. 14. What is an alternating current? A) A current that flows back and forth in a wire. B) A current that always flows in one direction. C) A potential difference that flows back and forth in a wire. D) A potential difference that always flows in one direction. Show Answer Correct Answer: A) A current that flows back and forth in a wire. 15. A radioactive substance has a half-life of 8 days. What is the number of days for the substance to become 25% of the initial value? A) 8 days. B) 16 days. C) 24 days. D) 12 days. Show Answer Correct Answer: B) 16 days. 16. Grounding happens when ..... A) A neutral object touches a MASSIVE conductive object. B) A neutral object comes into contact with another neutral object. C) A charged object touches a MASSIVE conductive object. D) A charged object is rubbed against another charged object. Show Answer Correct Answer: C) A charged object touches a MASSIVE conductive object. 17. Speed equals to ..... A) $ dis\tan ce\ \times time$. B) $ \frac{Dis\tan ce}{Time}$. C) None of the above. D) None of above. Show Answer Correct Answer: B) $ \frac{Dis\tan ce}{Time}$. 18. Which statement about drawing vector is TRUE? A) The vector's length should be proportional to its magnitude. B) You need a vector diagram to solve all physics problems properly. C) A vector is a quantity that has a magnitude but no direction. D) All quantities in physics are vectors. Show Answer Correct Answer: A) The vector's length should be proportional to its magnitude. 19. Two identical wheels, wheel 1 and wheel 2, initially at rest begin to rotate with constant angular accelerations $ \alpha$ . After rotating through the same angular displacement, $ \Delta\theta_0$, the angular velocity of wheel 1 is $ \omega_1$ and the angular velocity of wheel 2 is $ \omega_2=3\omega_1$ . How does the angular acceleration of wheel 2, $ \alpha_2$, compare to the angular acceleration of wheel 1, $ \propto_1$? A) $ \alpha_2=\frac{\alpha_1}{3}$. B) $ \alpha_2=3\alpha_1$. C) $ \alpha_2=9\alpha_1$. D) $ \alpha_2=\alpha_1$. Show Answer Correct Answer: C) $ \alpha_2=9\alpha_1$. 20. The units for momentum are A) M/s. B) Kg-m/s. C) Kg. D) Kg/m/s. Show Answer Correct Answer: B) Kg-m/s. 21. The quantitative property that must be transfered to an object to perform work A) Force. B) Energy. C) Atom. D) Matter. Show Answer Correct Answer: B) Energy. 22. An example of an applied science is A) Sociology. B) Biomedical engineering. C) History. D) None of above. Show Answer Correct Answer: B) Biomedical engineering. 23. Miles per hour North is an example of an objects what? A) Average Speed. B) Constant Speed. C) Velocity. D) Speed. Show Answer Correct Answer: C) Velocity. 24. How many significant figures does 50.00300 have? A) Three. B) Seven. C) Two. D) Five. Show Answer Correct Answer: B) Seven. 25. Rank the four fundamental forces of nature in order from weakest to strongest: A) Gravitational, Weak Nuclear, Electromagnetism, Strong Nuclear. B) Electromagnetism, Gravitational, Strong Nuclear, Weak Nuclear. C) Weak Nuclear, Gravitational, Electromagnetism, Strong Nuclear. D) Weak Nuclear, Electromagnetism, Gravitational, Strong Nuclear. Show Answer Correct Answer: A) Gravitational, Weak Nuclear, Electromagnetism, Strong Nuclear. 26. Define measurement A) A estimate without a unit of measurement of what the size of something is. B) A unit or system of measuring. The size, length, or amount of something, as established by measuring. C) A reading. D) An observation of a size of something. Show Answer Correct Answer: B) A unit or system of measuring. The size, length, or amount of something, as established by measuring. 27. Units of electrical charge A) C (Coulombs). B) A (amps). C) V (volts). D) J (Joules). Show Answer Correct Answer: A) C (Coulombs). 28. Football A has a greater mass than football B. Which football will have greater acceleration when both are thrown with the same force in the same direction? A) Football A. B) Football B. C) They will have the same acceleration. D) Mass has no effect on acceleration. Show Answer Correct Answer: A) Football A. 29. What is the mass of a woman of weight 700 N? (g=10 N/kg) A) 70 000 kg. B) 7 000 kg. C) 70 kg. D) 700 kg. Show Answer Correct Answer: C) 70 kg. 30. If a body covers equal distances in equal interval of time, the body is said to be in ..... A) Uniform motion. B) Non uniform motion. C) Stationary. D) None of the above. Show Answer Correct Answer: A) Uniform motion. 31. Why do physicists use models? A) To explain the complex features of simple phenomena. B) To describe all aspects of a phenomenon. C) To explain the basic features of complex phenomena. D) To describe all of reality. Show Answer Correct Answer: C) To explain the basic features of complex phenomena. 32. Of the main types of radiation emitted from naturally radioactive isotopes, which is the hardest to block? A) Alpha deca. B) Gamma Decay. C) Beta decay. D) They are all blocked using the same method. Show Answer Correct Answer: B) Gamma Decay. 33. The particles of a gas move ..... than the particles of the same substance in the liquid or solid state. A) Faster. B) Slower. C) Same speed. D) None of above. Show Answer Correct Answer: A) Faster. 34. The current in a SERIES circuit: A) Gets split between the components. B) Is measured in volts. C) Is the same everywhere. D) Gets stopped by resistors. Show Answer Correct Answer: C) Is the same everywhere. 35. Which statement would be TRUE about the particle model motion diagram for an airplane flying at a constant speed of 758 Km/hr? A) The dots would start close together and get farther apart as the plane moved away from the airport. B) The dots would be far apart at the beginning and get closer together as the plane moved away from the airport. C) The dots would form an evenly spaced pattern. D) None of above. Show Answer Correct Answer: C) The dots would form an evenly spaced pattern. 36. How fast is the 75.0 kg skateboarder from Question 1 travelling when they reach the bottom of the 4.50 m ramp? A) 3.31 m/s. B) 9.40 m/s. C) 88.3 m/s. D) 33.1 m/s. Show Answer Correct Answer: B) 9.40 m/s. 37. Physics variable for 3.2 m A) D. B) M. C) V. D) A. Show Answer Correct Answer: A) D. 38. An object at a distance of 30 cm from aconcave mirror gets its image at the same point. The focal length of the mirror is A) -15 cm. B) -30 cm. C) 30 cm. D) +15 cm. Show Answer Correct Answer: A) -15 cm. 39. Without a force to stop or slow a coasting object, the object will coast forever in a ..... line. A) Straight. B) Vertical. C) Red. D) Blue. Show Answer Correct Answer: A) Straight. 40. The correct equation to calculate speed is A) Time/distance. B) Distance x time. C) Distance/time2. D) Distance/time. Show Answer Correct Answer: D) Distance/time. 41. A 10.0 kg box is accelerated from 2.0 m/s to 4.0 m/s. What is the amount of work in joules needed to accelerate the box? A) 45.0. B) 20.0. C) 50.0. D) 60.0. Show Answer Correct Answer: D) 60.0. 42. If two objects collide or explode, they experience A) The same force for different amounts of time. B) Different forces for different amounts of time. C) Different forces for the same amount of time. D) The same force for the same amount of time. Show Answer Correct Answer: D) The same force for the same amount of time. 43. Electrical power is measured in A) Watts. B) Amps. C) Joules. D) Volts. Show Answer Correct Answer: A) Watts. 44. According to the law of reflection the angle of reflection is A) Equal to the angle of incidence. B) More than the angle of incidence. C) Less than the angle of incidence. D) None of above. Show Answer Correct Answer: A) Equal to the angle of incidence. 45. A large box of mass 4 kg slides across a frictionless surface with a velocity of 12 m/s to the right. It collides with a smaller box of mass 2 kg that is stationary. The boxes stick together. What is the velocity of the two combined masses after collision? A) 8 m/s, to the left. B) 4 m/s, to the left. C) 8 m/s, to the right. D) 4 m/s, to the right. Show Answer Correct Answer: C) 8 m/s, to the right. 46. What is the energy released when there is mass defect of 0.01g? A) 9 x 1014 J. B) 3 x 106 J. C) 9 x 1011 J. D) 1 x 10-19 J. Show Answer Correct Answer: C) 9 x 1011 J. 47. Which of the following in the LARGEST number? A) 8 x 1010. B) 1.3 x 1012. C) 9 x 106. D) 5.3 x 103. Show Answer Correct Answer: B) 1.3 x 1012. 48. Write 0.00000707 in scientific notation. A) 707 x 108. B) 7.07 x 106. C) 707 x 10-8. D) 7.07 x 10-6. Show Answer Correct Answer: D) 7.07 x 10-6. 49. The minimum frequency for which the photoelectric effect can occur is called the A) Cut off frequency. B) Absolute frequency. C) Threshold frequency. D) Lyman frequency. Show Answer Correct Answer: C) Threshold frequency. 50. How far is an object pushed if 250 J of work is done with a force of 5 N? A) 50 m. B) 245 m. C) 1250 m. D) 500 m. Show Answer Correct Answer: A) 50 m. 51. Branches of physics that studies the nature and behaviour of light A) Acoustics. B) Plasma Physics. C) Solid State Physics. D) Optics. Show Answer Correct Answer: D) Optics. 52. Two objects have different temperatures. Object A has a temperature of 42 degrees and Object B is 37 degrees. Which direction should the energy transfer between Objects A and B? A) From Object A to Object B. B) From Object B to Object A. C) Energy will not transfer. D) Energy will transfer both directions. Show Answer Correct Answer: A) From Object A to Object B. 53. What is 67, 490 rounded to 2 significant figures? A) 68, 000. B) 60 000. C) 67 500. D) 67, 000. Show Answer Correct Answer: D) 67, 000. 54. The sensitivity of a liquid-in-glass thermometer can be increased by A) Having a thick-walled bulb. B) Increasing the diameter of the column. C) Decreasing the size of the bulb. D) Increasing the length of the column. Show Answer Correct Answer: C) Decreasing the size of the bulb. 55. Complementary colors are two colors that A) Are primary colors. B) Are next to each other on the color chart. C) Look good together. D) Produce white light when added together. Show Answer Correct Answer: D) Produce white light when added together. 56. Which model of the atom said that electrons circle the nucleus in orbits of a fixed radius? A) Bohr model. B) Quantum mechanical model. C) Not true of either model. D) Both Bohr and Quantum mechanical model. Show Answer Correct Answer: A) Bohr model. 57. The main reason why the weak force have a short range (about $10^{-18}$m) is: A) Because its exchange particles have large masses. B) Because its exchange particles have no mass. C) Because its exchange particles have little masses. D) Because its exchange particles have equal masses. Show Answer Correct Answer: A) Because its exchange particles have large masses. 58. Final velocity-initial velocity A) Change in velocity. B) Displacement. C) Speed. D) None of above. Show Answer Correct Answer: A) Change in velocity. 59. SI unit of time is: A) Hour. B) Second. C) Mili seconds. D) Minute. Show Answer Correct Answer: B) Second. 60. Which component is not required to determine the work of a falling object? A) Distance. B) Time. C) Acceleration. D) Mass. Show Answer Correct Answer: B) Time. ← PreviousNext →Related QuizzesPhysics QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books