This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 20 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is t he curved path that an object follows when thrown or launched near the surface of the Earth? A) Terminal Velocity. B) Projectile Motion. C) Free Fall. D) Gravity. Show Answer Correct Answer: B) Projectile Motion. 2. If we have two resistors ( $ R_1$ = 5 $ \Omega$, $ R_2$ = 10 $ \Omega$ ) connected in parallel, then $ R_{eq}$ in ( $ \Omega$ ) is A) 13. B) 3.33. C) 5. D) 50. Show Answer Correct Answer: B) 3.33. 3. Yvonne was assigned to measure the size of the Santiago's basketball Court. She was able to obtain 19 meters for the length and 8.5 meters wide. With the details she has, what kind of quantity is it? A) Vector. B) Scalar. C) Magnitude. D) Direction. Show Answer Correct Answer: B) Scalar. 4. Which of the following is correct when the distance of an object covered is directly proportional to time? A) Constant acceleration. B) Constant speed. C) Uniform acceleration. D) Zero velocity. Show Answer Correct Answer: D) Zero velocity. 5. Which of the following values is equivalent to 0.150 m? A) 150 mm. B) 150 cm. C) 15 dm. D) 1500 $\mu$m. Show Answer Correct Answer: A) 150 mm. 6. An acceleration of 0 m/s2 indicates A) The object must be at rest. B) The object is moving at a constant velocity. C) The object is moving in a circle. D) None of above. Show Answer Correct Answer: B) The object is moving at a constant velocity. 7. Two vectors that are added together to produce a resultant are called the components of the resultant. A) Either true or false. B) False. C) Neither true nor false. D) True. Show Answer Correct Answer: A) Either true or false. 8. How many beams are there? A) 3. B) 5. C) 7. D) None of above. Show Answer Correct Answer: A) 3. 9. Which of the following is an electromagnetic wave? A) Sound wave. B) Cathode rays. C) Infra red rays. D) Ultrasonic wave. Show Answer Correct Answer: C) Infra red rays. 10. What is acceleration? A) The rate velocity changes. B) A measure of speed. C) The distance traveled by an object. D) Speed in a certain direction. Show Answer Correct Answer: A) The rate velocity changes. 11. A football field is 100.0 yards long. Express this distance in millimeters. 1 yard = 3 ft1 inch = 2.54 cm A) 762 mm. B) 9 144 mm. C) 91 440 mm. D) 84.67 mm. Show Answer Correct Answer: C) 91 440 mm. 12. Which of the following is the acceleration in horizontal direction of the projectile in motion? A) $ a=0$. B) $ a=-g$. C) $ a=g$. D) $ a=v_i$. Show Answer Correct Answer: A) $ a=0$. 13. This law states that when there is no net force applied to a body, it is in equillibrium. A) Law of Inertia. B) Law of Acceleration. C) Law of Interaction. D) Law of Gravity. Show Answer Correct Answer: A) Law of Inertia. 14. What is the most spoken (first) language in the world? A) Hindi. B) Mandarin. C) Spanish. D) English. Show Answer Correct Answer: B) Mandarin. 15. On rotating the analyzer if the intensity of light rays coming out of it varies from maximum to zero, then the incident beam of light is ..... A) Un-polarized. B) Partially polarized. C) Plane-polarized. D) Polarized. Show Answer Correct Answer: B) Partially polarized. 16. In what fields did Newton make revolutionary advances after returning home from Cambridge? A) Mathematics. B) Physics and astronomy. C) Optics. D) All above. Show Answer Correct Answer: D) All above. 17. The highness or lowness of a sound is the ..... A) Pitch. B) Loudness. C) Vibration. D) Resonance. Show Answer Correct Answer: A) Pitch. 18. What happens to work done as the angle between the force and displacement increases from zero to 90 degrees? A) It decreases. B) It increases. C) It stays the same. D) It is zero all throughout. Show Answer Correct Answer: A) It decreases. 19. The most commonly used frame of reference is A) The sun. B) Earth. C) The moon. D) The ocean. Show Answer Correct Answer: A) The sun. 20. An object at rest will ..... if no outside forces are applied. A) Stay at rest. B) Increase Velocity. C) Decrease Mass. D) None of above. Show Answer Correct Answer: A) Stay at rest. ← 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