This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 13 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The critical angle of water when refracted angle is 90 $^ \circ$ and refractive index for water and air is 1.33 and 1 is A) 48.8 $^ \circ$. B) 49.1 $^ \circ$. C) 50 $^ \circ$. D) 51 $^ \circ$. Show Answer Correct Answer: A) 48.8 $^ \circ$. 2. What type of force influences the projectiles to travel with a parabolic trajectory? A) Applied. B) Gravity. C) Friction. D) Tension. Show Answer Correct Answer: B) Gravity. 3. Household circuits are wired in ..... A) Series. B) Parallel. C) Both series and parallel. D) Neither series nor parallel. Show Answer Correct Answer: B) Parallel. 4. What does gravity do to time? A) Speeds it up. B) Slows it down. C) Nothing. D) None of above. Show Answer Correct Answer: B) Slows it down. 5. Resistance measures how well a material or object conducts A) Water. B) Fire. C) Electricity. D) Heat. Show Answer Correct Answer: C) Electricity. 6. Which of the following is the best example of work being done. A) Doing homework. B) Lifting a box. C) Pushing a stationary box. D) Holding a box. Show Answer Correct Answer: B) Lifting a box. 7. Solve for x:38/x = 5(3) + 4 A) 19. B) 38. C) 2. D) None of above. Show Answer Correct Answer: C) 2. 8. It is a measure of the hotness or coldness of an object that is proportional to the average kinetic energy of the molecules composing the object. A) Warmth. B) Humidity. C) Heat. D) Temperature. Show Answer Correct Answer: D) Temperature. 9. The rate at which falling objects in free-fall gain velocity on earth is A) -9.81 m/s/s. B) -25 m/s/s. C) 3 m/s/s. D) None of above. Show Answer Correct Answer: A) -9.81 m/s/s. 10. A repulsive force exists between which two particles? A) Two neutrons. B) An electron and a neutron. C) An electron and a proton. D) Two protons. Show Answer Correct Answer: D) Two protons. 11. The impulse is ..... the change in momentum A) Greater than. B) Equal to. C) Less than. D) Always double. Show Answer Correct Answer: B) Equal to. 12. What is the positive connection of a battery called? A) Current. B) Anode. C) Cathode. D) None of above. Show Answer Correct Answer: B) Anode. 13. People often refer to g's as forces, but they are not. Instead, a "g" is a standard unit of ..... A) Impulse. B) Acceleration. C) Inertia. D) Distance. Show Answer Correct Answer: B) Acceleration. 14. Pa(Pascal) is the unit for A) Thrust. B) Pressure. C) Frequency. D) Conductivity. Show Answer Correct Answer: B) Pressure. 15. The resistance in ( $ \Omega$ ) offered by the body if 5mA of current is flowing having potentialdifference of 5V A) 100. B) 1000. C) 10. D) 1. Show Answer Correct Answer: B) 1000. 16. Convert 21 days into seconds. A) 500 seconds. B) 30, 000 seconds. C) 1, 800, 000. D) 43, 000, 000. Show Answer Correct Answer: C) 1, 800, 000. 17. Which statement about mass is correct? A) A mass of 10 kg weighs 1 N near the Earth's surface. B) Mass is a gravitational force. C) Mass increases when the gravitational field strength increases. D) The greater the mass of a body, the more it resists a change in its motion. Show Answer Correct Answer: D) The greater the mass of a body, the more it resists a change in its motion. 18. Kinetic energy A) Energy of motion. B) Stored energy. C) Conservation of energy. D) Energy that is requires no movement. Show Answer Correct Answer: A) Energy of motion. 19. Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? A) Refraction. B) Internal reflection. C) Both (a) and (b). D) Diffusion. Show Answer Correct Answer: C) Both (a) and (b). 20. What the stand for ARC connection? A) Audio Rapid Connection. B) Audio Read Connection. C) Audio Return Channel. D) Auto Return Channel. Show Answer Correct Answer: C) Audio Return Channel. ← PreviousNext →Related QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books