This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 2 Kinematics – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is kinematic A) Branch of physics and a subdivision of classical mechanics concerned with the geometrically possible motion of a body or system of bodies without consideration of the forces involved. B) A force. C) A solution. D) None of the above. Show Answer Correct Answer: A) Branch of physics and a subdivision of classical mechanics concerned with the geometrically possible motion of a body or system of bodies without consideration of the forces involved. 2. Susie and Marcy drop rocks from an overhang into the river below. Susie drops the rock straight downwards. Marcy throws her rock with an initial horizontal velocity of 25 m/s. Choose the correct statement. A) Susie's rock reaches the river first. B) Marcy's rock reaches the river first. C) Both rocks will reach the river at the same time. D) Cannot be determined without knowing the mass of the rocks. Show Answer Correct Answer: C) Both rocks will reach the river at the same time. 3. Distance and direction of an object's change in position from a starting point A) Reference point. B) Displacement. C) Motion. D) Distance. Show Answer Correct Answer: B) Displacement. 4. A rotating object has an angular displacement of $\theta = 2t^2 + 3t$ $t = 2$ A) 11 rad/s. B) 7 rad/s. C) 10 rad/s. D) 14 rad/s. Show Answer Correct Answer: D) 14 rad/s. 5. A pendulum swings with an angular displacement of $0.1\, \text{rad}$ $2\, \text{m}$ A) $0.4\, \text{m}$. B) $0.05\, \text{m}$. C) $0.1\, \text{m}$. D) $0.2\, \text{m}$. Show Answer Correct Answer: D) $0.2\, \text{m}$. 6. The horizontal and vertical components of the initial velocity of a football are 24 m/s and 7 m/s respectively. What is the initial velocity of the football? A) 25 m/s. B) 42 m/s. C) 17 m/s. D) 31 m/s. Show Answer Correct Answer: A) 25 m/s. 7. Define relative motion in physics. A) Relative motion is the motion of an object in relation to a stationary object. B) Relative motion is the motion of an object in relation to an object at rest. C) Relative motion in physics is the motion of an object in relation to another moving object. D) Relative motion is the motion of an object in relation to its own previous position. Show Answer Correct Answer: C) Relative motion in physics is the motion of an object in relation to another moving object. 8. Pick the scalar quantity A) Force. B) Mass. C) Velocity. D) Displacment. Show Answer Correct Answer: B) Mass. 9. Instantaneous speed is the magnitude of what? A) Force. B) Acceleration. C) Displacement. D) Velocity. Show Answer Correct Answer: D) Velocity. 10. A seesaw is balanced with a 30 kg child sitting 2 meters from the pivot. How far from the pivot should a 20 kg child sit on the opposite side to maintain balance? A) 2 meters. B) 3 meters. C) 1 meter. D) 4 meters. Show Answer Correct Answer: B) 3 meters. 11. A ball is dropped from a building. How fast is it traveling after falling for 1.77 s? (Hint:It's a free falling object) A) 18.91 m/s. B) 20.03 m/s. C) 17.35 m/s. D) 14.76 m/s. Show Answer Correct Answer: C) 17.35 m/s. 12. What is the average angular velocity in radians if a paint spot on a tire turns from 57.3 degrees to 282 degrees in 0.5 sec? A) 1.95 rad/s. B) 7.8 rad/s. C) 25668 rad/s. D) 449 rad/s. Show Answer Correct Answer: B) 7.8 rad/s. 13. What is the rate at which displacement changes called? A) Speed. B) Distance. C) Acceleration. D) Momentum. Show Answer Correct Answer: A) Speed. 14. An object, initially at rest, travels a distance d in a time t at a constant acceleration. What is the time taken for the object to travel 16d from rest at the same acceleration? A) 2t. B) 16t. C) 8t. D) 4t. Show Answer Correct Answer: D) 4t. 15. A packaged roll of paper towels falls from a shelf in a grocery store and rolls due south without slipping. As its linear speed slows, what are the directions of the paper towels' angular velocity and angular acceleration A) East, west. B) West, east. C) East, east. D) West, west. Show Answer Correct Answer: A) East, west. 16. A ball is thrown straight up into the air, and after being in the air for 8.5 seconds, is caught by a person 4 m above the ground. To what maximum height did the ball go? A) 44.65 m. B) 41.2 m. C) 60.2 m. D) 86.6 m. E) 101.7 m. Show Answer Correct Answer: D) 86.6 m. 17. What is the correct unit for acceleration in kinematics? A) M/s. B) M/s$^{2}$. C) M/min$^{2}$. D) M/s/t. Show Answer Correct Answer: B) M/s$^{2}$. 18. A stationary runner begins a race and accelerates at 2 m/s$^{2 }$ for 4 seconds. What is the final speed of the runner A) 4 m/s. B) 6 m/s. C) 8 m/s. D) 2 m/s. Show Answer Correct Answer: C) 8 m/s. 19. A toy car drives right off of a table. The car hits the ground in 0.75 seconds and lands 3.5 m away from the table. How high was the table?Solve the problem. A) 4.19 m. B) 2.63 m. C) 2.76 m. D) 3.68 m. Show Answer Correct Answer: C) 2.76 m. 20. What is the average speed of an object? A) The distance traveled in a specific time interval. B) The change in position divided by the change in time. C) The total distance traveled divided by the total time taken. D) The rate at which an object changes its position. Show Answer Correct Answer: C) The total distance traveled divided by the total time taken. 21. An object is thrown vertically upward with an initial velocity of $15 \, \text{m/s}$ $g = 9.8 \, \text{m/s}^2$ A) $11.5 \, \text{m}$. B) $7.5 \, \text{m}$. C) $15.5 \, \text{m}$. D) $22.5 \, \text{m}$. Show Answer Correct Answer: B) $7.5 \, \text{m}$. 22. Suppose you are rotating in a chair with 2 equal masses held in each outstretched hand and you drop them. What happens to your angular velocity? A) Stays the same. B) Decrease. C) Is lost. D) Increase. Show Answer Correct Answer: A) Stays the same. 23. A woman runs a 200 m race in a time of 24.78 seconds. What is her average speed for the race? A) 0.12 m/s. B) 225 m/s. C) 8.07 m/s. D) 2.25 m/s. Show Answer Correct Answer: C) 8.07 m/s. 24. As a ball falls freely, the distance it falls each second is the same. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 25. An object moves at 24 m/s and slows to a stop in 3 seconds. what is the magnitude of the acceleration A) -8 m/s$^{2}$. B) -72 m/s$^{2}$. C) + 72 m/s$^{2}$. D) + 8 m/s$^{2}$. Show Answer Correct Answer: A) -8 m/s$^{2}$. 26. A car slows down from +32 m/s to +8 m/s in 4 s. The acceleration is A) 6 m/s/s opposite the motion. B) 2m/s/s in the direction of motion. C) 8 m/s/s opposite the motion. D) None of the above. Show Answer Correct Answer: A) 6 m/s/s opposite the motion. 27. Define instantaneous velocity. A) The velocity of an object at a specific point in time. B) The acceleration of an object at rest. C) The distance traveled by an object. D) The speed of an object over a long period of time. Show Answer Correct Answer: A) The velocity of an object at a specific point in time. 28. A disk starts from rest and accelerates uniformly at a rate of $2\, \text{rad/s}^2$ $5\, \text{s}$ A) $10\, \text{rad/s}$. B) $5\, \text{rad/s}$. C) $20\, \text{rad/s}$. D) $15\, \text{rad/s}$. Show Answer Correct Answer: A) $10\, \text{rad/s}$. 29. Which two quantities are vectors A) Temperature, distance. B) Velocity, acceleration. C) Speed, color. D) Time, mass. Show Answer Correct Answer: B) Velocity, acceleration. 30. A quantity that needs both magnitude and direction to be fully described A) Scalar. B) Vector. C) All the above. D) None of the above. Show Answer Correct Answer: B) Vector. 31. If something is in free fall, that means that it must be going towards the ground. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 32. A rock, dropped from rest near the surface of an atmosphere-free planet, attains a speed of 20.0 m/s after falling 8.0 meters. What is the acceleration due to gravity on this planet? A) 25 m/s$^{2}$. B) 2.5 m/s$^{2}$. C) 0.4 m/s$^{2}$. D) 1.3 m/s$^{2}$. Show Answer Correct Answer: A) 25 m/s$^{2}$. 33. A force of magnitude, F is applied to a doorknob and a second force of magnitude, 2F is applied to the same door at the middle of the door. Both forces are perpendicular to the door plane. Which of the following is the correct ratio between the torque of the first force and the torque of the second force? A) 1:2. B) 4:1. C) 2:1. D) 1:1. Show Answer Correct Answer: D) 1:1. 34. What would be the final velocity of a softball if it had an initial x-velocity of 15 m/s, an initial y-velocity of 21 m/s, a total time of flight of 7.5 seconds, and a launch angle of 60 degrees? (Hint:you have the find the final y-velocity first) A) 45.32 m/s. B) 50.25 m/s. C) 60.00 m/s. D) 54.67 m/s. Show Answer Correct Answer: D) 54.67 m/s. 35. A student performs an experiment to determine whether an object released from rest truly exhibits free-fall motion. The student takes data of distance d that the object has fallen at various times t after the object is released. If the object does exhibit free-fall motion, which of these graphs will be a line? A) D$^{2}$ vs. t. B) D$^{2}$ vs. t$^{2}$. C) D vs. t. D) D vs. t$^{2}$. Show Answer Correct Answer: D) D vs. t$^{2}$. 36. The term initial most directly refers to A) The value at the start of a time interval. B) The final value after motion ends. C) The value measured at one instant. D) The average over a time interval. Show Answer Correct Answer: A) The value at the start of a time interval. 37. A whiffle ball is tossed straight up, reaches a highest point, and falls back down. Air resistance is not negligible.Which of the following statements are true?I. The ball's speed is zero at the highest point.II. The ball's acceleration is zero at the highest point.III. The ball takes a longer time to travel up to the highest point than to fall back down. A) I only. B) II only. C) I and II. D) I and II. Show Answer Correct Answer: A) I only. 38. What is the force needed to accelerate a 30 kg object at 2 m/s$^{2}$? F = ma A) 60 N. B) 2 N. C) 30 N. D) 15 N. Show Answer Correct Answer: A) 60 N. 39. Suppose you are designing an engineless car for a downhill coasting race. What type of wheels would be the best? A) Diamond encrusted triangles. B) Solid disks. C) Hoops. D) Hollow cylinders. Show Answer Correct Answer: B) Solid disks. 40. A 200 kg cannon ball and 5 g ping pong ball are dropped from 20 m at the same time. Which objects hits the ground first? A) Ping pong ball. B) Cannon ball. C) Neither, they float off into space. D) Both objects hit the ground at the same time. Show Answer Correct Answer: D) Both objects hit the ground at the same time. 41. A car Travels 30 m/s. What is 30 m/s? A) Acceleration. B) Velocity. C) Time. D) Distance. Show Answer Correct Answer: B) Velocity. 42. A meter stick is pivoted at the 0.50-m line. A 3.0-kg object is hung from the 0.15-m line. Where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)? A) 0.71-m line. B) 0.56-m line. C) 0.09-m line. D) 0.21-m line. E) A 5.0-kg object cannot be placed anywhere on the meter stick to result in equilibrium in this system. Show Answer Correct Answer: A) 0.71-m line. 43. A car is traveling at 30 m/s. The driver applies the brakes, and the car uniformly decelerates at 9 m/s2. How far does the car travel before coming to a complete stop? A) 100 m. B) 200 m. C) 50 m. D) 2 m. E) 450 m. Show Answer Correct Answer: C) 50 m. 44. The length of the actual path an object moves is ..... A) Distance. B) Speed. C) Displacement. D) Velocity. Show Answer Correct Answer: A) Distance. 45. For projectile motion the velocity in the x direction is ..... Therefore, acceleration equals ..... A) Constant;-9.8. B) Variable; 0. C) Variable;-9.8. D) Constant; 0. Show Answer Correct Answer: D) Constant; 0. 46. What are the units for velocity? A) S/m. B) M/s. C) M/s$^{2}$. D) M. Show Answer Correct Answer: B) M/s. 47. A hacky sack is thrown up into the air with an initial velocity 3 m/s. What maximum height does the hacky sack reach? A) 0.46 m. B) 0.92. C) 0.15 m. D) 1.8 m. Show Answer Correct Answer: A) 0.46 m. 48. Subtract and round to the appropriate number of significant digits. $65.76-11.3$ A) 54.5. B) 54.4. C) 54.46. D) 54. Show Answer Correct Answer: A) 54.5. 49. A projectile is launched at an angle of 45$^{o}$ with a velocity of 250 m/s. If air resistance is neglected, the magnitude of the horizontal velocity of the projectile at the time it reaches maximum altitude is equal to A) 200 m/s. B) 175 m/s. C) 0 m/s. D) 250 m/s. Show Answer Correct Answer: B) 175 m/s. 50. Marcellus drops a half-eaten apple out the car window 1.0 m above the ground while traveling down the road at 18 m/s. How far, horizontally, from the initial dropping point will the pit hit the ground? A) 5.23 m. B) 4 m/s. C) 8.14 m. D) 18 m. Show Answer Correct Answer: C) 8.14 m. 51. Jack and Rose are holding hands and spinning in a circle as fast as they can. If Rose lets go by accident, what can you say about Jack's motion? A) It will be in a straight line opposite of Rose. B) It will be in a straight line in the direction of the instantaneous velocity. C) It will be in a curved path in the direction that he was originally going. D) Rose said she would never let go she lied. Show Answer Correct Answer: B) It will be in a straight line in the direction of the instantaneous velocity. 52. A force of 20 N is applied tangentially to a wheel of radius 0.2 m. What is the resulting torque? A) 6 Nm. B) 8 Nm. C) 4 Nm. D) 2 Nm. Show Answer Correct Answer: C) 4 Nm. 53. Alan drives from town a to town b with a distance of 30km and from town b to town c with a distance of 25km he then makes a u turn and drives back to town A what is the displacement of the journey A) 5km. B) 25km. C) 0km. D) 55km. Show Answer Correct Answer: C) 0km. 54. Which wrench would make it easier to remove a stubborn bolt? A) 8 inch long. B) 6 inch long. C) 5 inch long. D) 7 inch long. Show Answer Correct Answer: A) 8 inch long. 55. Determine the number of significant digits of 4.7500 A) 3. B) 6. C) 5. D) 4. Show Answer Correct Answer: C) 5. 56. The SI unit for time is A) Minute (min). B) Year (yr). C) Second (s). D) Hour (hr). Show Answer Correct Answer: C) Second (s). 57. When we discuss the motion of something, its motion is described relative to something else. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 58. What is the formula to calculate Velocity. A) V=d x t. B) V=t x d. C) V=t/d. D) V=d/t. Show Answer Correct Answer: D) V=d/t. 59. When is an object under uniform acceleration? A) None of the following. B) When the direction is straight. C) When the velocity change is constant per unit time. D) When the time is constant. Show Answer Correct Answer: C) When the velocity change is constant per unit time. 60. The unit for speed is: A) S. B) M/s$^{2}$. C) M/s. D) M. Show Answer Correct Answer: C) M/s. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Physics (Part I) Chapter 2 Kinematics Quiz 1Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 2Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 3Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 4Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 5Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 6Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 7Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books