This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 11 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If the force acting on a charged particle of (8x10-6C) due to an electric field is 4 N, the electric field in (N/C) is A) 5x105. B) 2x10-6. C) 5x10-5. D) 2x106. Show Answer Correct Answer: A) 5x105. 2. Who was the first Indian woman in space? A) Kalpana chawla. B) Sunita Willams. C) Koneru Humpy. D) None of the above. Show Answer Correct Answer: A) Kalpana chawla. 3. The critical angle in total internal reflection occurs when incident light on a surface is A) Refracted at 90$^ \circ$ to the normal. B) Reflected at 90$^ \circ$ to the normal. C) At maximum diffraction. D) Totally absorbed. Show Answer Correct Answer: A) Refracted at 90$^ \circ$ to the normal. 4. A cart is pushed and undergoes certain acceleration. Consider how the acceleration would compare if it were pushed with twice the net force while it's mass increased by four. Then its acceleration would be A) One quarter. B) One half. C) Twice. D) The same. Show Answer Correct Answer: B) One half. 5. What will happen to torque if the lever arm is doubled and the force is quadrupled? A) It will increase by a factor of eight. B) It will decrease by a factor of eight. C) It will be reduced to 1/2 its original value. D) It will be increased by 1/2 its original value. Show Answer Correct Answer: A) It will increase by a factor of eight. 6. Which of these values is greatest? A) 0.0056. B) 0.56. C) 5.6 x 10-2. D) 56 x 10-1. Show Answer Correct Answer: D) 56 x 10-1. 7. An object is ..... if its position changes relative to another object. A) In motion. B) At reset. C) A frame of refence. D) Magical. Show Answer Correct Answer: A) In motion. 8. Which of the given angle will have the farthest range when a projectile is launched? A) 75o. B) 60o. C) 45o. D) 15o. Show Answer Correct Answer: C) 45o. 9. Which of the following is not an action at a distance force? A) Gravitational Force. B) Electrical Force. C) Magnetic Force. D) Normal Force. Show Answer Correct Answer: D) Normal Force. 10. A ball with a mass of 500g is lifted onto a shelf which is 1.5 m above the ground. Calculate the gravitational potential energy gained by the ball (g = 9.8 m/s2 ) A) 7 350 Joule. B) 7.35 Joule. C) 73.50 Joule. D) 735.0 Joule. Show Answer Correct Answer: B) 7.35 Joule. 11. Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? A) Iron, air and water. B) Air, water and iron. C) Iron, water and air. D) Water, iron and air. Show Answer Correct Answer: B) Air, water and iron. 12. What is the unit of kinetic energy A) Watts. B) Joule. C) Horsepower. D) Kilocal. Show Answer Correct Answer: B) Joule. 13. In a bulb there are ..... terminals A) 5. B) 2. C) 8. D) 10. Show Answer Correct Answer: B) 2. 14. Intensity of sound at a point is ..... its distance from the source. A) Directly proportional to. B) Inversely proportional to. C) Directly proportional to square of. D) Inversely proportional to square of. Show Answer Correct Answer: D) Inversely proportional to square of. 15. A(n) ..... is a push or pull. A) Newton. B) Acceleration. C) Force. D) Momentum. Show Answer Correct Answer: C) Force. 16. What is the correct formula to find moment of force? A) Force x distance. B) Force x speed. C) Distance x Speed. D) Torque x distance. Show Answer Correct Answer: A) Force x distance. 17. Which among the following quantities is scalar? A) Work. B) Force. C) Velocity. D) Acceleration. Show Answer Correct Answer: C) Velocity. 18. The rotational effect of a force on a body about an axis of rotation is described in terms of A) Moment of force. B) Centre of gravity. C) Centripetal force. D) Centrifugal force. Show Answer Correct Answer: A) Moment of force. 19. A point charge Q is far from all other charges. At a distance of 2 m from Q, the electric field is 20 N/C. What is the force a charge of 5 Coulombs feels? A) 4 N. B) 100 N. C) 40 N. D) 10 N. Show Answer Correct Answer: B) 100 N. 20. A skydiver reaches terminal velocity. Then he opens his parachute. What happens to the skydiver as the parachute opens? A) A There is a decrease in weight. B) B There is acceleration upwards. C) C There is an increase in speed. D) D There is movement upwards. Show Answer Correct Answer: B) B There is acceleration upwards. ← 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