This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Physics Part I > Class 11 Physics (Part I) Chapter 2 Kinematics – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The quantity of 2.1 kgm/s$^{2 }$South is a (a) quantity A) A. vector. B) Scalar. C) All the above. D) None of the above. Show Answer Correct Answer: A) A. vector. 2. I can find displacement of an object using a velocity vs. time graph A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. Select the best answer for the following statement:If the net torque is zero, the object is not rotating. A) Always. B) Sometimes. C) Never. D) None of the above. Show Answer Correct Answer: B) Sometimes. 4. Charlie shoots a basketball from a height of 6 feet with an initial upward velocity of 18 feet per second. How long will it take the ball to reach the maximum height? A) 6 second. B) 11 seconds. C) This graph has a minimum. D) 0.6 seconds. Show Answer Correct Answer: D) 0.6 seconds. 5. What does a constant gradient on a distance-time graph indicate? A) Deceleration. B) Uniform Speed. C) Acceleration. D) Variable Speed. Show Answer Correct Answer: B) Uniform Speed. 6. State Galileo's Law for freely falling bodies. A) Objects fall slower if they are lighter. B) Objects fall at different rates based on their shape. C) All objects fall at the same rate regardless of their mass, assuming no air resistance. D) Objects fall faster if they are heavier. Show Answer Correct Answer: C) All objects fall at the same rate regardless of their mass, assuming no air resistance. 7. What can be said about the horizontal velocity of a projectile? A) Increasing. B) Decreasing. C) Constant. D) None of the above. Show Answer Correct Answer: C) Constant. 8. A BASE jumper jumps off a building. As the jumper falls downward, his speed will. A) Increase. B) Decrease. C) Stay the same. D) Behave randomly. Show Answer Correct Answer: A) Increase. 9. A figure skater pulls in her arms to spin faster. What principle explains this change in speed? A) Centripetal force. B) Conservation of angular momentum. C) Conservation of energy. D) Newton's third law. Show Answer Correct Answer: B) Conservation of angular momentum. 10. You are in a train going around a curve at a constant 30 miles per hour. Which of the following is true? A) You and the car are maintaining a velocity of 30 mph/sec. B) Your direction is constant. C) Your speed is constantly changing. D) Your velocity is constantly changing. Show Answer Correct Answer: D) Your velocity is constantly changing. 11. An automobile was moving at 10 m/s and accelerated at 2 m/s$^{2}$ for 10 s. Which of the following was its final speed? (Show Work #1) A) 25 m/s. B) 20 m/s. C) 35 m/s. D) 30 m/s. Show Answer Correct Answer: D) 30 m/s. 12. State Newton's third law of motion. A) Every action has an equal and opposite reaction. B) The force of an object is directly proportional to its acceleration. C) For every action, there is an equal and opposite reaction. D) An object in motion will stay in motion unless acted upon by an external force. Show Answer Correct Answer: C) For every action, there is an equal and opposite reaction. 13. A stone is thrown horizontally with an initial speed of 30 m/s from a bridge. Find the stone's total speed when it enters the water 4 seconds later (ignore air resistance). A) 60 m/s. B) 40 m/s. C) 50 m/s. D) 30 m/s. Show Answer Correct Answer: C) 50 m/s. 14. Which of the following is always true for an object moving in a straight line at constant speed? A) No forces act on the object. B) The momentum of the object is zero. C) No work is being done on the object. D) No resultant force acts on the object. Show Answer Correct Answer: D) No resultant force acts on the object. 15. System of units that scientists in most countries have agreed to use; includes units such as meters, liters, and grams A) FGP units. B) CGS units. C) English units. D) SI units. Show Answer Correct Answer: D) SI units. 16. Aria, Liam, and Samuel are observing a car on a straight road. They want to know if the position vs time graph of the car, which is speeding up, is a straight line. Is this statement true or false? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 17. A plane is headed eastward at a speed of 156 m/s. A 20.0 m/s wind is blowing southward at the same time as the plane is flying. The velocity of the plane relative to the ground is A) 157 m/s at an angle 7.31$^\circ$ south of east. B) 155 m/s at an angle 7.36$^\circ$ south of east. C) 155 m/s at an angle 7.36$^\circ$ east of south. D) 157 m/s at an angle 7.31$^\circ$ east of south. Show Answer Correct Answer: A) 157 m/s at an angle 7.31$^\circ$ south of east. 18. Galileo described reference frames using A) The earth. B) Nearby stationary objects in a ship. C) A passenger in a plane. D) A windowless ship. Show Answer Correct Answer: D) A windowless ship. 19. A projectile has an initial horizontal velocity of 15m/s and an initial vertical velocity of 25m/s. Determine the projectile's horizontal displacement if the total flight is 5 seconds. A) -3m. B) 3m. C) 125m. D) 75m. Show Answer Correct Answer: D) 75m. 20. A body moving in the positive x direction passes the origin at time t = 0. Between t = 0 and t = 1 second, the body has a constant speed of 24 meters per second. At t = 1 second, the body is given a constant acceleration of 6 meters per second squared in the negative x direction. The position x of the body at t = 11 seconds is A) -36 m. B) +36 m. C) -99 m. D) +99 m. Show Answer Correct Answer: A) -36 m. 21. Suppose you are in a car that is traveling around a curve. The speedometer reads a constant 30 miles per hour. Which of the following is true? A) You and the car are accelerating. B) Your speed is changing. C) Your velocity is constant. D) Your acceleration constant. Show Answer Correct Answer: A) You and the car are accelerating. 22. Adam finished 100 m race in a time of 8.7 s. What was his average speed? A) 4.4 ms$^{-1}$. B) 18.7 ms$^{-1 }$. C) 11.5 ms$^{-1 }$. D) 10.0 ms$^{-1}$. Show Answer Correct Answer: C) 11.5 ms$^{-1 }$. 23. If you analyze points farther radially outwards from the center of a rotating object, the angular velocity and angular acceleration are A) Increasing. B) Decreasing. C) Remaining the same. D) None of the above. Show Answer Correct Answer: C) Remaining the same. 24. The (a) of a velocity-time graph equals the displacement. A) Displacement. B) Slope. C) Tangent. D) Velocity. E) A. area under the curve. F) Acceleration. Show Answer Correct Answer: E) A. area under the curve. 25. For a rotating rigid body, which of the following statements is NOT correct? A) All points along a rotating rigid body move with constant speed. B) Points along a rotating body have velocities that continuously change directions. C) Points along a rotating body move through the same angle in equal time intervals. D) All of the answers are correct. Show Answer Correct Answer: A) All points along a rotating rigid body move with constant speed. 26. Which has more rotational inertia? (consider all objects have equal radius) A) Solid sphere. B) Cylindrical shell. C) Solid cylinder. D) Hollow sphere. Show Answer Correct Answer: B) Cylindrical shell. 27. The Earth pulls downward on a pingpong ball with a force of 1N. If this is the "action" force, what is the "reaction" force? A) The ground exerts a force of 1N on the ping pong ball. B) The ping pong ball exerts a force of 1 N on the Earth. C) The ping pong ball pushes down on the earth with a force of 1N. D) The is no reaction force when a gravitational force is involved. Show Answer Correct Answer: B) The ping pong ball exerts a force of 1 N on the Earth. 28. An object starts from rest. What is it's initial velocity? A) 0 m/s. B) 9.8 m/s. C) You cannot tell unless you have more information. D) None of the above. Show Answer Correct Answer: A) 0 m/s. 29. A ball rolls off a building and hits the ground 256 meters away 57 seconds later. What is the height of the building? A) 17, 000m. B) -16, 245m. C) 16, 245m. D) 300m. Show Answer Correct Answer: C) 16, 245m. 30. Motion is a change in ..... A) Position. B) Time. C) Velocity. D) Speed. Show Answer Correct Answer: A) Position. 31. ..... is a vector and is how far away an object is from its starting point. A) Acceleration. B) Distance. C) Velocity. D) Displacement. Show Answer Correct Answer: D) Displacement. 32. If a body is falling freely the the acceleration due to gravity is taken as A) Equal. B) Positive. C) Infinite. D) Negative. Show Answer Correct Answer: B) Positive. 33. Seconds is the unit for which physics concept? A) Initial velocity. B) Acceleration. C) Time. D) Final velocity. E) Distance. Show Answer Correct Answer: C) Time. 34. A tiger travels 50 meters north, 35 meters east, and then 10 more meters north. What is the tigers displacement? A) 61.5 meters. B) 65.5 meters. C) 69.5 meters. D) 68.5 meters. E) 62.5 meters. Show Answer Correct Answer: C) 69.5 meters. 35. The straight-line distance between two fixed points is referred to as ..... A) Speed. B) Distance. C) Velocity. D) Displacement. Show Answer Correct Answer: D) Displacement. 36. A ball is thrown into the air at some angle, with initial velocities v$_{x}$ (horizontal) and v$_{y }$(vertical). At the very top of the ball's path:What is its velocity in the horizontal direction? A) V$_{x}$. B) Greater than v$_{x}$. C) Zero. D) None of the above. Show Answer Correct Answer: A) V$_{x}$. 37. Which of the following is an example of uniform acceleration? A) A car moving in a circular path. B) A car moving with a constant speed. C) A car slowing down at a constant rate. D) A car moving with a changing speed. Show Answer Correct Answer: D) A car moving with a changing speed. 38. Beau throws a baseball at 23.0 m/s at an angle of 25.0 degrees relative to the ground.If the ball was caught 42.0 m from Beau, find the time the ball was in the air A) 1.98 seconds. B) 0.991 seconds. C) 1.52 seconds. D) 2.05 seconds. Show Answer Correct Answer: A) 1.98 seconds. 39. A body falls freely from height "h" after 2 seconds if acceleration due to gravity is reversed the body A) Continuously to fall down. B) Falls down with retardation and goes up. C) Falls down with uniform velocity. D) Raises up with acceleration. Show Answer Correct Answer: B) Falls down with retardation and goes up. 40. A kangaroo is capable of jumping to a height of 2.42 m. What is its takeoff speed? A) 6.36 m/s. B) 6.88 m/s. C) 4.69 m/s. D) 8.37 m/s. Show Answer Correct Answer: B) 6.88 m/s. 41. How many seconds does it take to travel 800 cm at a speed of 25 cm/s? A) 32 s. B) 0.03 s. C) 20, 000 s. D) 25 s. Show Answer Correct Answer: A) 32 s. 42. A force in a circular direction A) Speed. B) Oscillating. C) Reciprocating. D) Torque. Show Answer Correct Answer: D) Torque. 43. In a test of car bumpers a car, a car moving at 7.0m/s collides head-on with a wall. From what height would a car have to be dropped in order to collide with the ground at the same velocity? A) 4.9m. B) 1.2m. C) 2.5m. D) 6.6m. Show Answer Correct Answer: C) 2.5m. 44. If the acceleration vector of an object is directed anti-parallel to the velocity vector, A) The object is not moving. B) The object is slowing down. C) The object is turning. D) The object is speeding up. Show Answer Correct Answer: B) The object is slowing down. 45. A hockey puck is traveling in the positive x direction and gets hit with a hockey stick such that it now travels only in the y direction. This is an example of ..... A) Velocity. B) Acceleration. C) Projectile motion. D) Displacement. Show Answer Correct Answer: B) Acceleration. 46. Which is the correct formula for finding acceleration a = A) = $\Delta$v / t. B) V / cos x. C) $\Delta$v / d. D) T / $\Delta$v. Show Answer Correct Answer: A) = $\Delta$v / t. 47. Ryan runs along the inside lane of a 400 m oval track exactly 4 times in 5.5 minutes. What is the magnitude Ryan's velocity? A) 0.21 m/s. B) 4.85 m/s. C) 0.73 m/s. D) 290.91 m/s. E) 0 m/s. Show Answer Correct Answer: E) 0 m/s. 48. Which of the following is the best format for writing a hypothesis: A) Well you see here:. B) The reason for this is:. C) If (Cause) Then (Effect) Because (Rationale). D) Educated Guess. Show Answer Correct Answer: C) If (Cause) Then (Effect) Because (Rationale). 49. A wheel with a radius of $0.5\, \text{m}$ $\omega = 12\, \text{rad/s}$ A) $36\, \text{m/s}^2$. B) $48\, \text{m/s}^2$. C) $72\, \text{m/s}^2$. D) $24\, \text{m/s}^2$. Show Answer Correct Answer: A) $36\, \text{m/s}^2$. 50. The magnitude of an object's motion ..... A) Is equal to its mass. B) Cannot be determined. C) Is a vector quantity. D) Is a scalar quantity. Show Answer Correct Answer: D) Is a scalar quantity. 51. A crocodile swims across a rive that is flowing eastward with a velocity of 5.75 m/s, and the crocodile is swimming in a northern direction with a velocity of 8 m/s as is stalks a water buffalo calf. What would be the overall velocity experienced by the croc? A) 13.75 m/s. B) 46 m/s. C) 1.4 m/s. D) 9.85 m/s. Show Answer Correct Answer: D) 9.85 m/s. 52. The rate of change in velocity is ..... A) Relative velocity. B) Speed. C) Acceleration. D) Frame of reference. Show Answer Correct Answer: C) Acceleration. 53. A tin can whirled on the end of a string moves in a circle because A) The can continually pulls on the string. B) Once the can starts moving, that is its natural tendency. C) There is a force on the can pulling it outward. D) There is an inward force acting on the can. Show Answer Correct Answer: D) There is an inward force acting on the can. 54. An object is thrown upwards on Earth with an initial velocity of 30 m/s. The acceleration due to gravity on Earth is around-10 m/s. How long does it take until the velocity of the object is zero (at the top of the arc)? A) 300 seconds. B) 0.333 seconds. C) More information is needed. D) 3 seconds. Show Answer Correct Answer: D) 3 seconds. 55. A placekicker kicks a football at a velocity of 10.0 m/s from a tee on the ground at an angle of 30$^\circ$ from the horizontal. Approximately how long will the ball stay in the air? A) 0.0 s. B) 1.8 s. C) 0.6 s. D) 0.8 s. E) 1.0 s. Show Answer Correct Answer: E) 1.0 s. 56. Which of the following quantities are vectors? A) Velocity, acceleration, force. B) Speed, velocity, acceleration. C) Force, acceleration, mass. D) Length, mass, time. Show Answer Correct Answer: A) Velocity, acceleration, force. 57. An object is thrown vertically upward with an initial speed of 15 m/s. What is the total time in the air? A) 3.5 seconds. B) 1.5 seconds. C) 5 seconds. D) 3 second. Show Answer Correct Answer: D) 3 second. 58. A freely falling object starts from rest. After falling for 6 seconds, it will have a speed of about: A) 36m/s. B) 60m/s. C) 12m/s. D) 6m/s. Show Answer Correct Answer: B) 60m/s. 59. What is an object's acceleration if it is traveling at 5 m/s and accelerates for 3 seconds until it reaches a velocity of 35 m/s? A) 13.3 m/s$^{2}$. B) 10 m/s$^{2}$. C) -13.3 m/s$^{2}$. D) -10 m/s$^{2}$. Show Answer Correct Answer: D) -10 m/s$^{2}$. 60. A projectile has a trajectory of 55 degrees and a projectile velocity of 13 m/s. What would the horizontal velocity be of the projectile? A) 7.64 m/s. B) 7.46 m/s. C) 0.29 m/s. D) 0.92 m/s. Show Answer Correct Answer: B) 7.46 m/s. 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