This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 15 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How are we able to see the color white? A) All colors except red are absorbed. B) All colors are absorbed. C) All colors are reflected. D) All colors except red are reflected. Show Answer Correct Answer: C) All colors are reflected. 2. The shorter the wavelength A) The higher the frequency. B) The lower the frequency. C) The higher the amplitude. D) The lower the energy. Show Answer Correct Answer: A) The higher the frequency. 3. Which of the following is constant in the whole travel of the object in projectile motion? A) Gravity, g. B) Horizontal velocity, vx. C) Initial velocity, vi. D) Vertical velocity, vy. Show Answer Correct Answer: B) Horizontal velocity, vx. 4. Force of attraction between the molecules of different substances is called A) Adhesive force. B) Cohensive force. C) Surface tension. D) None of above. Show Answer Correct Answer: A) Adhesive force. 5. What is 0.006 70 m in correct scientific notation? A) 6.70 x 10-3 m. B) 6.7 x 10-3 m. C) 6.70 x 103 m. D) 6.700 00 x 10-3 m. Show Answer Correct Answer: A) 6.70 x 10-3 m. 6. Correct equation of distance is A) Vi = Vf + at. B) Vf = Vi + at. C) Vf = Vi + t. D) Vf = Vi + a. Show Answer Correct Answer: C) Vf = Vi + t. 7. Light travels at the fastest speed in A) Glass. B) Water. C) Vacuum. D) Hydrogen. Show Answer Correct Answer: C) Vacuum. 8. This quantity is the combination of fundamental quantities using the mathematical operations of multiplication and division. A) Base quantity. B) Physical quantity. C) Derive quantity. D) SI. Show Answer Correct Answer: C) Derive quantity. 9. What is the definition of force? A) Push. B) Pull. C) Push and pull. D) None of above. Show Answer Correct Answer: C) Push and pull. 10. The purpose of aireraft wing dihedral is to A) Increase lateral stability. B) Increase longitudinal stability. C) Increase lift coefficient of the wing. D) None of above. Show Answer Correct Answer: A) Increase lateral stability. 11. In a ..... circuit, the total resistance is greater than the largest resistance in the circuit. A) Series. B) Parallel. C) Either series or parallel. D) Neither series nor parallel. Show Answer Correct Answer: A) Series. 12. What is Hooke's Law? A) Force is inversely proportional to displacement. B) Force is directly proportional to displacement. C) Force is inversely proportional to the square of displacement. D) Force is directly proportional to the square of displacement. Show Answer Correct Answer: B) Force is directly proportional to displacement. 13. What is 1.2 kW in Horsepower? A) 1.61 Hp. B) 746 Hp. C) 1.62 Hp. D) 1.73 Hp. Show Answer Correct Answer: A) 1.61 Hp. 14. A car travels 100km. The journey takes two hours. The highest speed of the car is 80km/ h, and the lowest speed is 40km/ h. What is the average speed for the journey? A) A 40km/ h. B) B 50km/ h. C) C 60km/ h. D) D 120km/ h. Show Answer Correct Answer: B) B 50km/ h. 15. ..... the angle between the normal and the reflected ray. A) Angle of incidence. B) Angle of reflection. C) Angle of coincidence. D) Angle of direction. Show Answer Correct Answer: B) Angle of reflection. 16. Now come to unit 1 dimentional analysis tell the fundamental units are there? A) 6. B) 7. C) 8. D) Non of this. Show Answer Correct Answer: B) 7. 17. A subatomic particles that is slightly heavier than proton and is electrically neutral is A) Neutron. B) Positron. C) Alpha particle. D) Electron. Show Answer Correct Answer: A) Neutron. 18. The motion of the car is provided by the function x = 3t3+10t2+3t. Find its instantaneous acceleration at time = 2 seconds. A) 56 m/s2. B) 32 m/s2. C) 26 m/s2. D) 76 m/s2. Show Answer Correct Answer: A) 56 m/s2. 19. If one of the charges doubles, what happens to the force? A) It doubles. B) It gets cut in half. C) It quadruples. D) It is cut by 1/4. Show Answer Correct Answer: A) It doubles. 20. When we drop a coin and a feather simultaneously in a tube fill with air, which one will reach the bottom first? A) Coin. B) Feather. C) None of the above. D) They will reach at the same time. Show Answer Correct Answer: A) Coin. ← 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