This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics Basics > Physics – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 12 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Find the velocity of a truck that travels 75 miles north in 2.5 hours. A) 200 mph north. B) 300 mph north. C) 187.5 mph north. D) 30 mph north. Show Answer Correct Answer: D) 30 mph north. 2. Two forces act on an object.In which situation is it IMPOSSIBLE for the object to be in equilibrium? A) The two forces act in the same direction. B) The two forces act through the same point. C) The two forces are the same size. D) The two forces are of the same type. Show Answer Correct Answer: A) The two forces act in the same direction. 3. What is the radioisotope used to determine the age of a fossil? A) Carbon-14. B) Americium-241. C) Uranium-238. D) Iodine-131. Show Answer Correct Answer: A) Carbon-14. 4. What is the symbol for Thermal Energy? A) Q. B) T. C) M. D) C. Show Answer Correct Answer: A) Q. 5. David walks 3 km north, and then turns east and walks 4 km. What is the distance? A) 7 km. B) 1 km. C) 3 km. D) 4 km. Show Answer Correct Answer: A) 7 km. 6. Time taken for a sample of a radioactive nuclei to decay to half of its initial number is the definition for ..... A) Radioactive decay. B) Half-life. C) Chain reaction. D) Period of a nucleus. Show Answer Correct Answer: B) Half-life. 7. Now the cart is being pulled along a horizontal track by an external force (a weight hanging over the table edge) and accelerating. It fires a ball straight out of the cannon as it moves. After it is fired, what happens to the ball? A) It depends upon how much the track is tilted. B) It falls behind the cart. C) It falls in front of the cart. D) It falls right back into the cart. E) It remains at rest. Show Answer Correct Answer: B) It falls behind the cart. 8. Velocity is measured in ..... A) M/s/s. B) M/s. C) Kg/h. D) Degrees. Show Answer Correct Answer: B) M/s. 9. When air rushes out of a balloon and it moves upward. This is an example of which Law of Motion. A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) None of above. Show Answer Correct Answer: C) Newton's Third Law. 10. An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations A) Newton's first law. B) Newton's second law. C) Conservation of momentum. D) Newton's third law. Show Answer Correct Answer: B) Newton's second law. 11. Which color bends the most (greatest refraction) when entering a transparent material. A) Violet. B) Green. C) Red. D) Yellow. Show Answer Correct Answer: A) Violet. 12. Heat energy is also called ..... energy. A) Mechanical. B) Electrical. C) Thermal. D) Chemical. Show Answer Correct Answer: C) Thermal. 13. The Theory of the Conservation of Energy states- A) Energy can be created, just not destroyed. It changes its form from one type to another. B) Energy can never be created nor destroyed. It can only change its form from one type to another. C) The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances. D) Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies. Show Answer Correct Answer: B) Energy can never be created nor destroyed. It can only change its form from one type to another. 14. Which of the following has the most kinetic energy? A) A 90 kg toddler running at 30 m/s. B) A 50 kg toddler running at 30 m/s. C) A 20 kg toddler running at 5 m/s. D) A 100 kg toddler running at 2 m/s. Show Answer Correct Answer: A) A 90 kg toddler running at 30 m/s. 15. In applying Charles's law, temperature must be on the ..... scale. A) Kelvin. B) Pascal. C) Fahrenheit. D) Celsius. Show Answer Correct Answer: A) Kelvin. 16. Models in physics A) Take into account surroundings not concerned with the system. B) Simplify phenomena. C) Are never pictures. D) None of above. Show Answer Correct Answer: B) Simplify phenomena. 17. Which one of the following is a time measuring device: A) Sundial. B) Barometer. C) Speedometer. D) Odometer. Show Answer Correct Answer: A) Sundial. 18. An object that reflects all light that lands on it is called a A) Mirror. B) Non-luminous. C) Glass. D) Lens. Show Answer Correct Answer: A) Mirror. 19. How much energy is required to melt down a 2000 g of mercury? (latent heat of fusion is 1.14 x $ 10^4$ J/kg) A) 2.55 x $ 10^4$ J. B) 3.28 x $ 10^4$ J. C) 2.28 x $ 10^4$ J. D) 2, 280 x $ 10^4$ J. Show Answer Correct Answer: C) 2.28 x $ 10^4$ J. 20. An entire lake is heated by water from a hot spring at the bottom of the lake. What type of heat transfer is this? A) Convection. B) Conduction. C) Radiation. D) None of above. Show Answer Correct Answer: A) Convection. 21. What is the equation for gravitational potential energy? A) Ep = 1/2 mgh. B) Ep = 1/2 mg. C) Ep = mgh. D) Ep = mg/h. Show Answer Correct Answer: C) Ep = mgh. 22. The idea that the volume of a gas increases with increasing temperature provided the pressure does not change is A) Bernoulli's principle. B) Boyle's law. C) Charles's law. D) Archimedes' principle. Show Answer Correct Answer: C) Charles's law. 23. Units for acceleration A) M / s2. B) S2 / m. C) M + s2. D) S2. Show Answer Correct Answer: A) M / s2. 24. The most appropriate SI unit for measuring the length of an automobile is the A) Kilometer. B) Meter. C) Nanometer. D) Micron. Show Answer Correct Answer: B) Meter. 25. Write 0.005 in scientific notation A) 5/1000. B) 5x103. C) 5x10-3. D) 5 millimeters. Show Answer Correct Answer: C) 5x10-3. 26. Makes popcorn pop A) Thermal expansion of the water in the kernel. B) Thermal equilibrium of the water and the kernel. C) Thermal fusion of the water in the kernel. D) None of above. Show Answer Correct Answer: A) Thermal expansion of the water in the kernel. 27. If an object has an normal force of 80N what is its mass? A) 8.15 kg. B) 784.8 N. C) Not enough information. D) 80 kg. Show Answer Correct Answer: A) 8.15 kg. 28. This variable in the experiment is the one being deliberately changed by the scientist A) Dependent variable. B) Independent variable. C) Data. D) None of above. Show Answer Correct Answer: B) Independent variable. 29. What happens to the amount of energy in a car's kinetic energy store when the car slows down? A) It remains the same. B) It decreases as some energy is transferred away to different energy stores. C) It decreases as some energy is destroyed. D) None of above. Show Answer Correct Answer: B) It decreases as some energy is transferred away to different energy stores. 30. According to the Law of Conservation of Energy, energy cannot be ..... or ..... A) Destroyed, destroyed. B) Lost, found. C) Created, saved. D) Created, destroyed. Show Answer Correct Answer: D) Created, destroyed. 31. ..... is the mass per unit volume of a substance or object A) Area. B) Density. C) Mass. D) Volume. Show Answer Correct Answer: B) Density. 32. What is the potential energy done in lifting a 50 kg barbell 6 m above the floor? A) 150 J. B) 2940 J. C) 1470 J. D) 300 J. Show Answer Correct Answer: B) 2940 J. 33. What is the formula for work? A) Distance = force x work. B) Work = force x distance. C) Work = force x mass. D) Force = work x distance. Show Answer Correct Answer: B) Work = force x distance. 34. WHAT IS A PHYSICAL QUANTITY MADE UP OF? A) A value. B) A unit. C) A value and a unit. D) A unit and direction. Show Answer Correct Answer: C) A value and a unit. 35. What is the end result of charging by contact? A) Both object have the same charge, so they will attract one another. B) Both object have the same charge, so they will repel one another. C) Both object have the opposite charge, so they will attract one another. D) Both object have the opposite charge, so they will repel one another. Show Answer Correct Answer: B) Both object have the same charge, so they will repel one another. 36. Solve and round accordingly. "7.9 + 9.19 + 75.351" A) 92.441. B) 92.4. C) 92. D) 92.44. Show Answer Correct Answer: B) 92.4. 37. As the velocity of an object decreases its KE will ..... A) Increase. B) Decrease. C) Stay the same. D) None of above. Show Answer Correct Answer: B) Decrease. 38. A cube of brass has a mass of 68g and volume 8 $cm^3$. What is the density of brass in $gcm^3$? A) 8.5. B) 34. C) 544. D) 0.13. Show Answer Correct Answer: A) 8.5. 39. A quick method of finding the density of a liquid is to use a .....? A) Manometer. B) Hydrometer. C) Barometer. D) Micrometer. Show Answer Correct Answer: B) Hydrometer. 40. The periodic time of a simple pendulum can be increased by A) Decreasing the length of the cord. B) Increasing the length of the cord. C) Decreasing the amplitude of oscillation. D) Increasing the mass of the bob. Show Answer Correct Answer: B) Increasing the length of the cord. 41. Which of the following measurements is the smallest? A) 4.7 x 104 m. B) 4.7 x 104 cm. C) 4.7 x 104 mm. D) 4.7 x 104 $\mu$m. Show Answer Correct Answer: D) 4.7 x 104 $\mu$m. 42. A film projector produces a 151 cm image of a horse on a screen. If the projector lens is 400 cm from the screen and the size of the horse on the film is 1.07 cm, what is the magnification of the image? A) -14.1. B) 141. C) 0.00708. D) -7.08. Show Answer Correct Answer: B) 141. 43. EM waves have the same speed but different: A) Color & medium. B) Wavelength & frequency. C) Frequency & medium. D) Medium & wavelength. Show Answer Correct Answer: B) Wavelength & frequency. 44. What does AC mean in electrical terms? A) Alternating Current. B) Acceleration Ceremony. C) Amplect Ceremony. D) Adaption cecum. Show Answer Correct Answer: A) Alternating Current. 45. What is the earth's primary source of light energy? A) Fire. B) Moon. C) Sun. D) Waves. Show Answer Correct Answer: C) Sun. 46. A useful method of expressing very small or very large number is ..... A) Significant figures. B) Greek letters. C) Scientific notation. D) Arabic numerals. Show Answer Correct Answer: C) Scientific notation. 47. If 150 Joules of work is needed to move a box 10 meters, what force was used? A) 15 N. B) 1500 N. C) 150 N. D) 1.5 N. Show Answer Correct Answer: A) 15 N. 48. How many significant figures does the following number have:0.002040 A) 6. B) 3. C) 2. D) 4. Show Answer Correct Answer: D) 4. 49. Magenta light is really a mixture of A) Red and yellow light. B) Red and cyan light. C) Yellow and green light. D) Red and blue light. Show Answer Correct Answer: D) Red and blue light. 50. The unit Joules is for ..... A) Heat energy. B) Temperature. C) Specific heat. D) None of above. Show Answer Correct Answer: A) Heat energy. 51. Saqib uses a wheelbarrow to move soil into his garden. He exerts an average force of 165 N while pushing the wheelbarrow and does 6.4 J of work during each load. How far is he moving the soil during each load? A) 0.026 m. B) 26 m. C) 0.039 m. D) 39 m. Show Answer Correct Answer: C) 0.039 m. 52. Changes of state are different to chemical changes because ..... A) Changes of state can be reversed to recover the original properties of the material. B) Changes of state result in the creation of new substances. C) Changes of state cannot happen to gases. D) None of above. Show Answer Correct Answer: A) Changes of state can be reversed to recover the original properties of the material. 53. What is .00000005 A in SI Prefix form A) 5.0 X 10-9 A. B) 5.0 x 10-7 A. C) 50nA. D) 5.0 x 10-8. Show Answer Correct Answer: C) 50nA. 54. Formula for potential energy A) U = $ \frac{1}{2} m*v^2$. B) U = F*d. C) U = m*g*y. D) U = W/t. Show Answer Correct Answer: C) U = m*g*y. 55. The emission spectra is produced when A) Electrons release energy as they move to their excited state. B) Electrons absorb energy as they return to the ground state. C) Electrons absorb energy as they move to their excited state. D) Electrons release energy as they return to the ground state. Show Answer Correct Answer: D) Electrons release energy as they return to the ground state. 56. Which model of the atom said that electrons are allowed to have only certain energies? A) Bohr model. B) Quantum mechanical model. C) Not true of either model. D) Both Bohr and Quantum mechanical model. Show Answer Correct Answer: D) Both Bohr and Quantum mechanical model. 57. A particular light bulb is 23% efficient. If 200 kJ of energy is put into the light bulb, the amount of energy the light is producing is A) 200 KJ. B) 4600 KJ. C) 46 KJ. D) 870 KJ. Show Answer Correct Answer: C) 46 KJ. 58. Calculate the charge flowing through a wire in 5 seconds if the current is 3 Amps A) 15C. B) 80C. C) 8C. D) 15. Show Answer Correct Answer: A) 15C. 59. Equation for acceleration A) Change in velocity + time taken. B) Change in velocity / time taken. C) Change in velocity x time taken. D) Change in velocity-time taken. Show Answer Correct Answer: B) Change in velocity / time taken. 60. The to and fro motion of a simple pendulum is an example of ..... motion. A) Curvilinear. B) Circular. C) Oscillatory. D) Rectilinear. Show Answer Correct Answer: C) Oscillatory. ← 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