This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 46 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 46 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The vector resultant of an object's change in position is the same at its displacement. A) Either true or false. B) False. C) Neither true nor false. D) True. Show Answer Correct Answer: D) True. 2. How much force is needed to keep an object with a constant speed moving? A) Zero. B) Equal to the weight of the object. C) Just enough to produce acceleration. D) Greater than the frictional force met by the object. Show Answer Correct Answer: A) Zero. 3. What is the acceleration of gravity? A) 8 m/s/s. B) 9.81 m/s/s. C) 10 m/s/s. D) 11 m/s/s. Show Answer Correct Answer: B) 9.81 m/s/s. 4. How do you measure final velocity? A) Acceleration x time. B) Original velocity + acceleration. C) Original velocity + (acceleration x time). D) Original velocity +time. Show Answer Correct Answer: C) Original velocity + (acceleration x time). 5. The distance in meters traveled by a particle is related to time (t) in seconds by the equation of motion-S = 10 t +4 t2. What is the initial velocity of the body? A) 4 m/s. B) 6 m/s. C) 10 m/s. D) 10 m/s2. Show Answer Correct Answer: D) 10 m/s2. 6. The maximum velocity upto which fluid motion is streamline is called A) Viscous Force. B) Critical Velocity. C) Streamline Flow. D) Terminal Velocity. Show Answer Correct Answer: B) Critical Velocity. 7. If two bodies of different masses, initially at rest, are acted upon by the same force for the same time, then the both bodies acquire the same A) Velocity. B) Momentum. C) Acceleration. D) Kinetic energy. Show Answer Correct Answer: B) Momentum. 8. What does gradient give you in a speed-time graph? A) Distance value. B) Acceleration value. C) Speed value. D) Yo mama. Show Answer Correct Answer: B) Acceleration value. 9. If the object is in equilibrium, find the magnitude and direction of the force that produces equilibrium. A) 10N, 53$^ \circ$ W of S. B) 10N, 53$^ \circ$ N of E. C) 10N, 53$^ \circ$ E of N. D) 10N, 53$^ \circ$ S of W. Show Answer Correct Answer: D) 10N, 53$^ \circ$ S of W. 10. Which of the following is true about acceleration? A) Acceleration is not affected by force. B) Decreasing the force increasing the acceleration. C) Increasing the force increases the acceleration. D) Increasing and decreasing the force will not affects acceleration. Show Answer Correct Answer: C) Increasing the force increases the acceleration. 11. Three resistors connected in parallel have individual values of 4.0, 6.0 and 10.0 ohm, respectively. If this combination is connected in series with a 12-V battery and a 2.0-ohm resistor, what is the current in the 10-ohm resistor? A) 0.59 A. B) 1.0 A. C) 11 A. D) 16 A. Show Answer Correct Answer: A) 0.59 A. 12. What is the unit of measurement for energy? A) Newton (N). B) M/s. C) Joule (J). D) Work (W). Show Answer Correct Answer: C) Joule (J). 13. Which of the following would produce the highest pitch? A) Phone. B) Whistle. C) Truck horn. D) Dog's growl. Show Answer Correct Answer: B) Whistle. 14. It is the combination of two or more base units A) Derived units. B) Metric system. C) Basic units. D) British or english system. Show Answer Correct Answer: A) Derived units. 15. The differentiation of velocity with respect to time gives A) Velocity square. B) Acceleration. C) Distance. D) Velocity/2. Show Answer Correct Answer: B) Acceleration. 16. What is another name for fundamental units? A) Atoms. B) Letter symbols. C) Base units. D) The Metric System. Show Answer Correct Answer: C) Base units. 17. A man is walking on a train opposite the trains forward motion. If the man is walking at 2 m/s and the train is moving at 10 m/s how fast is the man moving relative to the ground? A) 12 m/s. B) 8 m/s. C) 10 m/s. D) 2 m/s. Show Answer Correct Answer: B) 8 m/s. 18. After some rather exhausting counting (and a rather tall tale), a physics teacher determines that a very small sample of an object contains 2.6325 x 1015 protons and 2.6325 x 1015 electrons; the charge on this object is ..... Coulomb(s). A) 0. B) 2.6325. C) 1. D) None of above. Show Answer Correct Answer: A) 0. 19. In the equation ( $ C=\ f\ \lambda$ ), $ f$ stands for A) Wavelength. B) Period. C) Speed of light. D) Frequency. Show Answer Correct Answer: D) Frequency. 20. An airplane accelerates down a runway at 3.20 m/s/sfor 8 s until it finally lifts off the ground.Determine the velocity at take-off. A) 0.4 m/s. B) 25.6 m/s. C) 2.5 m/s. D) None of above. Show Answer Correct Answer: B) 25.6 m/s. ← 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