This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 50 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 50 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An object undergoing simple harmonic motion has a period of 0.007 s. What is its frequency? A) 142.86 Hz. B) 14.29 Hz. C) 242.86 Hz. D) 24.29 Hz. Show Answer Correct Answer: A) 142.86 Hz. 2. A wave signal passes a point with 5 complete oscillations in 2 seconds. What is the frequency of the wave? A) 5/2 Hz. B) 2/5 Hz. C) 10 Hz. D) 7 Hz. Show Answer Correct Answer: A) 5/2 Hz. 3. What is the formula for calculating momentum? A) M=mv. B) P=m/v. C) P=v/m. D) P=vm. Show Answer Correct Answer: D) P=vm. 4. It is the rate of doing work. That also is the rate at which energy is transferred. A) ENERGY. B) WORK. C) TORQUE. D) POWER. Show Answer Correct Answer: D) POWER. 5. What is the unit for spring constant? A) N/m. B) Nm. C) N. D) M. Show Answer Correct Answer: A) N/m. 6. The speed of sound in the atmosphere is most affected by variations in which of the following? A) Sound frequency (cps). B) Ambient temperature. C) Barometric pressure. D) None of above. Show Answer Correct Answer: B) Ambient temperature. 7. One reason why the sky appears blue is because A) Much more red light than blue light is absorbed by air atoms. B) Red light is reflected by the atmosphere. C) Red light is reflected by the atmosphere. D) Blue light is scattered to a greater extent than red light. Show Answer Correct Answer: D) Blue light is scattered to a greater extent than red light. 8. What is Canada's National Animal? A) Horse. B) Monkey. C) Pig. D) Beaver. Show Answer Correct Answer: D) Beaver. 9. Which law states, "Signifies that good absorbers are good emitters" . A) Stefan's Law. B) Doppler's Effect. C) Kirchhoff's Law. D) Newton's law of cooling. Show Answer Correct Answer: C) Kirchhoff's Law. 10. There are many factors that contribute to the overall crashworthiness of a vehicle. Which of the following is NOT a factor that you should consider when judging if a car has good crashworthiness? A) Vehicle structure. B) Restraint systems. C) Resale price. D) Alterations and repairs. Show Answer Correct Answer: C) Resale price. 11. Which is a unit of wavelength? A) Hertz. B) Meter. C) Meter per second. D) Second. Show Answer Correct Answer: B) Meter. 12. What science investigates the fundamental concepts of matter, energy, and space, and the relationships among them. A) Biology. B) Physics. C) Chemistry. D) Mathematics. Show Answer Correct Answer: B) Physics. 13. This theorem states that the impulse given to an object is equal to the change in its momentum. A) Impulsive Theorem. B) Impulse-Momentum Theorem. C) Momentary-impulse Theorem. D) IM-Theorem. Show Answer Correct Answer: B) Impulse-Momentum Theorem. 14. Which are the primary Colours? A) Red, Green, Blue. B) Red, Green, White. C) Yellow, Green, Blue. D) Red, Magenta, Blue. Show Answer Correct Answer: A) Red, Green, Blue. 15. Force of attraction between the molecules of same substance is called A) Adhesive force. B) Cohensive force. C) Surface tension. D) None of above. Show Answer Correct Answer: B) Cohensive force. 16. Why are you more stable when riding a bicycle at a faster speed? A) You have more mass. B) The wheels have angular momentum. C) It's not easier to ride at a faster speed. D) The bike has more momentum. Show Answer Correct Answer: B) The wheels have angular momentum. 17. In physics, which of the following factors are necessary to determine power 1. Force exerted 2. Distance moved 3. Time required A) 1 and 2. B) 2 and 3. C) 1, 2 and 3. D) None of above. Show Answer Correct Answer: C) 1, 2 and 3. 18. Which of the following situation DOES NOT show an object that experiences impulse? A) A ring moving at 5 m/s eastward. B) A rubber ball bouncing up and down the ground. C) A confetti thrown from the ceiling of a concert venue. D) A car moving at 7 m/s left then right at the same speed. Show Answer Correct Answer: A) A ring moving at 5 m/s eastward. 19. UNIT OF POWER IS A) KG. B) METER. C) WATT. D) NEWTON. Show Answer Correct Answer: C) WATT. 20. Which atmospheric conditions will cause the true landing speed of an aircraft to be the greatest? A) Low temperature with low humidity. B) High temperature with low humidity. C) High temperature with high humidity. D) None of above. Show Answer Correct Answer: C) High temperature with high humidity. ← 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