This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Physics Basics > Physics – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 14 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which position of the object will produce a magnified virtual image, if a concave mirror of focal length 15 cm is being used? A) 10 cm. B) 30 cm. C) 20 cm. D) 35 cm. Show Answer Correct Answer: A) 10 cm. 2. A cube of ice is placed in a foam cup and it begins to melt. The air temperature is 23$^ \circ$C. Which one of the following best describes the temperature of the water that is formed? A) Room temperature. B) Less than 0$^ \circ$C. C) Greater than 0$^ \circ$C but less than room temperature. D) 0$^ \circ$C. Show Answer Correct Answer: D) 0$^ \circ$C. 3. Speed, energy and momentum are A) Derived quantity. B) Base quantity. C) Vector quantity. D) Scalar quantity. Show Answer Correct Answer: A) Derived quantity. 4. Albert Einstein did a lot of physics work in the physics area called ..... ..... A) Static Mechanics. B) Gas Law. C) Relativistic mechanics. D) None of above. Show Answer Correct Answer: C) Relativistic mechanics. 5. Fred kicks a ball with a force of 20N to George, who is 5M away. How much work was done to the ball? A) 100J. B) 25J. C) 75J. D) 4J. Show Answer Correct Answer: A) 100J. 6. A concave mirror produces a magnification of +4. The object is placed: A) At the focus. B) Between focus and centre of curvature. C) Between focus and pole. D) Beyond the centre of curvature. Show Answer Correct Answer: C) Between focus and pole. 7. How does population Density effect the environment? A) Smog. B) To many people in one space can overwhelm the ecosystem and enviroment. C) People pollute. D) Pancakes. Show Answer Correct Answer: B) To many people in one space can overwhelm the ecosystem and enviroment. 8. A truck driving at 60 miles per hour travels 150 miles. How long is it driving for? A) 210 hours. B) 2.5 hours. C) 9000 hours. D) 0.4 hours. Show Answer Correct Answer: B) 2.5 hours. 9. Seconds is the unit of which physics concept? A) Time. B) Distance. C) Acceleration. D) Velocity. Show Answer Correct Answer: A) Time. 10. On position time graph, with position on the y-axis and time on the x-axis, a change in direction is represented by: A) A line that is initially moving upwards, then turns downward. B) A constantly rising line. C) A flat, horizontal line. D) A point at the intersection of the x and y axis. E) A line that curves sharply. Show Answer Correct Answer: B) A constantly rising line. 11. When one object, vibrating at the same natural frequency of a second object, forces that second object into vibration motion, it is called A) Harmonics. B) Amplitude. C) Frequency. D) Resonance. Show Answer Correct Answer: D) Resonance. 12. An automobile engine uses gasoline and in the process of burning the gasoline, a lot of "waste" heat is generated by the engine, this can be explained by A) Potential energy. B) Kinetic energy. C) Second law of thermodynamics. D) First law of thermodynamics. Show Answer Correct Answer: C) Second law of thermodynamics. 13. With correctly calibrated tools, taking repeated measurements will likely increase the ..... A) Precision. B) Uncertainty. C) Percent error. D) Accuracy. Show Answer Correct Answer: D) Accuracy. 14. A car accelerates from rest to 10m/s and takes 4 seconds to do so. The distance travelled is: A) 20m. B) 40m. C) 2.5m. D) 20 m/s. Show Answer Correct Answer: A) 20m. 15. It took 3.5 hours for a train to travel the distance between two cities at a velocity of 120 miles/hr. How many miles lie between the two cities? A) 120 miles. B) 420 miles. C) 360 miles. D) 34 miles. Show Answer Correct Answer: B) 420 miles. 16. The Law of Conservation of Momentum states: A) The total momentum before a collision is not related to the total momentum after a collision. B) The total momentum before a collision is greater than the total momentum after a collision. C) The total momentum before a collision is equal to the total momentum after a collision. D) The total momentum before a collision is less than the total momentum after a collision. Show Answer Correct Answer: C) The total momentum before a collision is equal to the total momentum after a collision. 17. What is the gain in gravitational potential energy of a body of weight 2000N as it rises from a height of 20 m to a height of 25m above the earth's surface? A) 1000 J. B) 20 000 J. C) 10 000 J. D) 400 J. Show Answer Correct Answer: C) 10 000 J. 18. SI unit for time A) Hours. B) Minutes. C) Days. D) Seconds. Show Answer Correct Answer: D) Seconds. 19. The frequency of the note Middle D is 293Hz. What length of closed pipe (to the nearest cm / at room temperature) will play the fundamental? A) 13cm. B) 43cm. C) 3cm. D) 23cm. Show Answer Correct Answer: D) 23cm. 20. Day= ..... second A) 100. B) 86.400. C) 24. D) 3600. Show Answer Correct Answer: B) 86.400. 21. Another name for a light source is A) Reflector. B) Non-luminous object. C) Opaque. D) Luminous object. Show Answer Correct Answer: D) Luminous object. 22. Equation for kinetic energy A) 1/2 x mass x speed3. B) 1/2 x mass x speed2. C) 1/2 / mass x speed3. D) 1/2 / mass x speed2. Show Answer Correct Answer: B) 1/2 x mass x speed2. 23. Calculate the Kinetic Energy (KE) of a girl whose mass is 50 kg who is moving at 4 m/s. A) 400 J. B) 100 J. C) 800 J. D) 200 J. Show Answer Correct Answer: A) 400 J. 24. Bayu can catch the ball. and the ball stops. does this prove the forces can? A) Change how things move. B) Change shape. C) Change direction. D) None of above. Show Answer Correct Answer: A) Change how things move. 25. Identify at least two areas of physics involved in the following:Cooling off on a hot day by diving into a swimming pool. A) Vibrations and wave phenomena, electromagnetism. B) Mechanics, vibrations and wave phenomena. C) Optics, thermodynamics. D) Thermodynamics, mechanics. Show Answer Correct Answer: D) Thermodynamics, mechanics. 26. Which option is the correct unit of measurement for energy? A) Joule (J). B) Newton (N). C) Jewel (je). D) Kilogram (kg). Show Answer Correct Answer: A) Joule (J). 27. A 70 kg acrobat hangs from a bar, motionless, that is attached to the ceiling by two ropes. Find the tension in each rope. A) 343.35 N. B) 686.7 N. C) 343.35 kg. D) 70 N. Show Answer Correct Answer: A) 343.35 N. 28. What happens to the mass of a substance when it changes from a solid to a liquid? A) It increases. B) It decreases. C) It stays the same. D) None of above. Show Answer Correct Answer: C) It stays the same. 29. How much energy is required to change 2600 g of water at 100 $^\circ$ C into steam temperature? (latent heat of vaporization is 2.26 x $ 10^6$ ) A) M = 5.9 X $ 10^6$ J. B) $ \Delta$ T = 5.9 X $ 10^6$ J. C) Q = 5.9 X $ 10^6$ J. D) C = 5.9 X $ 10^6$ J. Show Answer Correct Answer: C) Q = 5.9 X $ 10^6$ J. 30. Convert 0.25 m to mm A) 25. B) 0.025. C) 250. D) 2.5. Show Answer Correct Answer: C) 250. 31. Energy Transferred is equal to A) Potential Difference x Charge. B) Potential Difference x Current. C) Potential Difference / Current. D) Potential Difference / Charge. Show Answer Correct Answer: A) Potential Difference x Charge. 32. Which of the following statements about the kinetic theory of gases is NOT true: A) All molecules move with the same speed. B) Their average kinetic energy is directly proportional to the absolute temperature. C) All molecules make elastic collisions with each other and the walls of the container. D) The molecules travel in straight lines until they collide. Show Answer Correct Answer: A) All molecules move with the same speed. 33. Newton's second law uses which equation? A) E = ms2. B) V = at. C) F = ma. D) F = mv-ma. Show Answer Correct Answer: C) F = ma. 34. When using a displacement can what is the mass of the object in it equal to A) The change in liquid level in the can. B) The amount of liquid collected in the second beaker. C) The volume of liquid collected in the second beaker. D) None of those above. Show Answer Correct Answer: D) None of those above. 35. Absolute 0 (0 kelvin) is ..... degrees A) -304. B) -283. C) -273. D) None of above. Show Answer Correct Answer: C) -273. 36. The product of Force and Distance is A) Work. B) Impulse. C) Momentum. D) None of above. Show Answer Correct Answer: A) Work. 37. Which statement is true about an object that is traveling in uniform circular motion? A) The net force on the object is directed away from the center of the circular path. B) The speed of the object varies. C) The net force on the object is directed toward the center of the circular path. D) The direction of the object's velocity is constant. Show Answer Correct Answer: C) The net force on the object is directed toward the center of the circular path. 38. What will happen to the pressure of a fixed volume of gas if its temperature is increased? A) It will decrease. B) It will increase. C) It will stay the same. D) None of above. Show Answer Correct Answer: B) It will increase. 39. Branches of physics that is concerned with the forces that occur between electrically charged particles A) Quantum Physics. B) Electromagnetism. C) Mechanics. D) Acoustics. Show Answer Correct Answer: B) Electromagnetism. 40. Acceleration occurs when an object changes its speed or ..... A) Inertia. B) Mass. C) Direction. D) Force. Show Answer Correct Answer: C) Direction. 41. Units of voltage A) Amps. B) Joules. C) Ohms. D) Volts. Show Answer Correct Answer: D) Volts. 42. ..... Law says that the Induced current is proportional to the change of magnetic flux A) Lenz'. B) Faraday's. C) Ampere's. D) None of above. Show Answer Correct Answer: B) Faraday's. 43. A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 seconds. What is his new velocity? The bolded term is which physics concept? A) Initial velocity. B) Time. C) Distance. D) Final velocity. E) Acceleration. Show Answer Correct Answer: A) Initial velocity. 44. Physics variable for 45 kg A) M. B) F. C) D. D) Weight. Show Answer Correct Answer: A) M. 45. Gravitational Potential Energy is defined as: A) The energy a spring has due to its stretch. B) The energy an object has due to its motion. C) The energy an object has due to its height from the ground. D) The chemical energy stored in the molecules of atoms. Show Answer Correct Answer: C) The energy an object has due to its height from the ground. 46. In a velocity-time graph, the area under the graph line gives the: A) The velocity (speed). B) The time taken. C) Distance travelled. D) The acceleration. Show Answer Correct Answer: C) Distance travelled. 47. Which of the following lists of physical quantities consists only of scalars? A) Mass, velocity, acceleration. B) Time, mass, velocity. C) Velocity, acceleration, force. D) Speed, volume, work. Show Answer Correct Answer: D) Speed, volume, work. 48. The latent heat of fusion is used to A) Increase the kinetic energy of molecules. B) Do work against the atmospheric pressure. C) Do work to break the binding force among the molecules. D) Increase the kinetic energy of electrons in the molecules. Show Answer Correct Answer: C) Do work to break the binding force among the molecules. 49. A bus takes 30 minutes to travel a distance of 25 kilometers. The speed of the bus in km/h is: A) 55 km/h. B) 50 km/h. C) 75 km/min. D) 5 km/h. Show Answer Correct Answer: B) 50 km/h. 50. It is a branch of physics that includes various areas of study based on quantum theory which deals with matter and electromagnetic radiation, and the interactions between them. A) Thermodynamics. B) Quantum Physics. C) Optics. D) Nuclear Physics. Show Answer Correct Answer: B) Quantum Physics. 51. CALCULATE THE ENERGY CONSUMED BY 120W TOASTER IN 20 MINUTE. A) 144 KJ. B) 44 KJ. C) 6KJ. D) 122 KJ. Show Answer Correct Answer: A) 144 KJ. 52. A motorboat velocity is 20 km/h in still water. If the boat must travel straight to the nearest shore in a river whose current is 12 km/h, What up stream angle must the bow boat point at? (hints:you know the opposite and resultant sides of your right triangle here). A) 46 degrees upsteam. B) 42 degrees upstream. C) 37 degrees upstream. D) 22 degrees upstream. Show Answer Correct Answer: C) 37 degrees upstream. 53. The force of ..... exists between any two objects that have mass. A) Gravity. B) Acceleration. C) Weight. D) Free fall. Show Answer Correct Answer: A) Gravity. 54. The most appropriate unit for expressing the speed of a space rocket is: A) Km/s. B) Km/min. C) Km/h. D) M/s. Show Answer Correct Answer: A) Km/s. 55. How many zeros would be in this number if written in standard form? 6.47 x 1011 A) 9. B) 12. C) 11. D) 10. Show Answer Correct Answer: A) 9. 56. How many Significant Figures in the number below? 4.56 x 103 A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: A) 3. 57. What is the passage mainly about? A) Why swimmers and cyclists move at different speeds. B) The motion of bodies and objects. C) The movement of an object inside a vacuum. D) The scientific discoveries of Sir Isaac Newton. Show Answer Correct Answer: B) The motion of bodies and objects. 58. What is defined as an objects velocity at any given time A) Instantaneous velocity. B) Intimidation velocity. C) Immediate velocity. D) Institutional velocity. Show Answer Correct Answer: A) Instantaneous velocity. 59. Density is equal to A) Mass x volume. B) Mass / volume. C) Weight x volume. D) Weight / volume. Show Answer Correct Answer: B) Mass / volume. 60. De Broglie equation A) Relates the frequency of a mass to its wavelength. B) Relates the work function of a mass to its wavelength. C) Relates the momentum of a mass to its wavelength. D) Relates the energy of a mass to its wavelength. Show Answer Correct Answer: C) Relates the momentum of a mass to its wavelength. ← 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