This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 41 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A car joins a road at a speed of 14 m / s and accelerates at 4.0 m / s2 for 5.0 seconds. What is the final speed of the car? A) 18 m / s. B) 20 m / s. C) 32 m / s. D) 34 m / s. Show Answer Correct Answer: D) 34 m / s. 2. The rear seats of most cars lack seat belt systems with crash tensioners and ..... A) Crash torsioners. B) Force limiters. C) Crash stressors. D) Force multipliers. Show Answer Correct Answer: B) Force limiters. 3. What is the rate of acceleration of a mountain bike if it slows down from 9.4 m/s to 3.0 m/s in a time of 3.75 s? A) -0.61 m/s2. B) -1.71 m/s2. C) -1.19 m/s2. D) -2.07 m/s2. Show Answer Correct Answer: B) -1.71 m/s2. 4. When an object has a net force of 0 N, it is an example of what kind of force? A) Balanced. B) Unbalanced. C) Acceleration. D) Gravity. Show Answer Correct Answer: A) Balanced. 5. At what point do vertical acceleration of a projectile highest? A) The highest point. B) The lowest point. C) On the way up and the way down. D) Same everywhere. Show Answer Correct Answer: D) Same everywhere. 6. The dimensions of Kinetic energy is same as that of A) Force. B) Pressure. C) Work. D) Momentum. Show Answer Correct Answer: C) Work. 7. Like charges always A) Attract. B) Repel. C) Both attract and repel. D) None of these. Show Answer Correct Answer: B) Repel. 8. The following light wave that has the highest energy is A) Violet. B) Blue. C) Green. D) Red. Show Answer Correct Answer: A) Violet. 9. The two ends of a 3.0-ohm resistor are connected to a 9.0-V battery. What is the total power delivered by the battery to the circuit? A) 3.0 W. B) 27 W. C) 0.33 W. D) 0.11 W. Show Answer Correct Answer: B) 27 W. 10. Stars which appear single to the naked eye but are double when seen through a telescope are A) Quasars. B) Binaries. C) Asteroids. D) Novas and supernovas. Show Answer Correct Answer: B) Binaries. 11. If the temperature of a confined liquid is held constant and its pressure is tripled, the volume will A) Triple. B) Be reduced to one third its originalVolume. C) Remain the same. D) None of above. Show Answer Correct Answer: C) Remain the same. 12. The measure of how hard it is for electrons to move in an electrical circuit A) Resistance. B) Electric Current. C) Electric Circuit. D) Ohm's Law. Show Answer Correct Answer: A) Resistance. 13. The following three appliances are connected to a 120-V house circuit:i) toaster, 1 200 W, ii) coffee pot, 750 W, and iii) microwave, 800 W. If all were operated at the same time, what total current would they draw? A) 3.0 A. B) 5.0 A. C) 10 A. D) 23 A. Show Answer Correct Answer: D) 23 A. 14. Physical quantities that cannot be derived from other physical quantities are A) Base quantity. B) Derived quantity. C) Physical quantity. D) Scalar quantity. Show Answer Correct Answer: A) Base quantity. 15. Which equation defines Hooke's Law? A) F = x. B) F = k x. C) F = 1/2 k x. D) F = 1/2 k x2. Show Answer Correct Answer: B) F = k x. 16. What is 4.1 x 10-5 ns in standard notation? A) 0.000 041 ns. B) 0.000 004 1 ns. C) 410 000 ns. D) 4 100 000 ns. Show Answer Correct Answer: A) 0.000 041 ns. 17. The purpose of stall strips on airplane wings is to A) Increase lift in the areas of installation. B) Prevent stall in the areas of installation. C) Ensure that the wing root areas stall first. D) None of above. Show Answer Correct Answer: C) Ensure that the wing root areas stall first. 18. If you wanted to raise the internal energy of a bucket of 20$^ \circ$C water, you could A) Place ice in the bucket. B) Place it in a refrigerator. C) Let the bucket stand at room temperature if the room is less than 20$^ \circ$C. D) Add 25$^ \circ$C water in the bucket. Show Answer Correct Answer: D) Add 25$^ \circ$C water in the bucket. 19. A crumpled piece of paper hits the ground before a flat sheet of paper because A) The acceleration of gravity is greater on the crumpled paper. B) There is more air resistance against the flat paper. C) The crumpled paper is more massive. D) The crumpled paper is less massive. Show Answer Correct Answer: B) There is more air resistance against the flat paper. 20. What is wave period? A) The time taken to complete one complete cycle. B) The number of complete cycles in one second. C) The distance travelled by a wave in one second. D) The shape of the waveform. Show Answer Correct Answer: A) The time taken to complete one complete cycle. ← 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