This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 2 Kinematics – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 22 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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) + 8 m/s$^{2}$. C) + 72 m/s$^{2}$. D) -72 m/s$^{2}$. Show Answer Correct Answer: A) -8 m/s$^{2}$. 2. 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. 3. Define instantaneous velocity. A) The speed of an object over a long period of time. B) The acceleration of an object at rest. C) The distance traveled by an object. D) The velocity of an object at a specific point in time. Show Answer Correct Answer: D) The velocity of an object at a specific point in time. 4. A disk starts from rest and accelerates uniformly at a rate of $2\, \text{rad/s}^2$ $5\, \text{s}$ A) $5\, \text{rad/s}$. B) $10\, \text{rad/s}$. C) $15\, \text{rad/s}$. D) $20\, \text{rad/s}$. Show Answer Correct Answer: B) $10\, \text{rad/s}$. 5. Which two quantities are vectors A) Time, mass. B) Velocity, acceleration. C) Temperature, distance. D) Speed, color. Show Answer Correct Answer: B) Velocity, acceleration. 6. 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. 7. 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. 8. 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) 0.4 m/s$^{2}$. B) 1.3 m/s$^{2}$. C) 2.5 m/s$^{2}$. D) 25 m/s$^{2}$. Show Answer Correct Answer: D) 25 m/s$^{2}$. 9. 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) 1:1. C) 2:1. D) 4:1. Show Answer Correct Answer: B) 1:1. 10. 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) 54.67 m/s. B) 45.32 m/s. C) 50.25 m/s. D) 60.00 m/s. Show Answer Correct Answer: A) 54.67 m/s. 11. 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 vs. t. B) D vs. t$^{2}$. C) D$^{2}$ vs. t. D) D$^{2}$ vs. t$^{2}$. Show Answer Correct Answer: B) D vs. t$^{2}$. 12. The term initial most directly refers to A) The value at the start of a time interval. B) The average over a time interval. C) The value measured at one instant. D) The final value after motion ends. Show Answer Correct Answer: A) The value at the start of a time interval. 13. 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. 14. Which of the following would be considered a scalar quantity? A) 55 km/h, east. B) 35 m/s, north. C) 40 kg. D) 20 kg m/s, to the right. Show Answer Correct Answer: C) 40 kg. 15. What is the force needed to accelerate a 30 kg object at 2 m/s$^{2}$? F = ma A) 15 N. B) 30 N. C) 60 N. D) 2 N. Show Answer Correct Answer: C) 60 N. 16. Suppose you are designing an engineless car for a downhill coasting race. What type of wheels would be the best? A) Solid disks. B) Hoops. C) Hollow cylinders. D) Diamond encrusted triangles. Show Answer Correct Answer: A) Solid disks. 17. 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. 18. A car Travels 30 m/s. What is 30 m/s? A) Distance. B) Time. C) Velocity. D) Acceleration. Show Answer Correct Answer: C) Velocity. 19. 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) 0.09-m line. B) 0.21-m line. C) 0.56-m line. D) 0.71-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: D) 0.71-m line. 20. 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) 2 m. B) 50 m. C) 100 m. D) 200 m. E) 450 m. Show Answer Correct Answer: B) 50 m. 21. The length of the actual path an object moves is ..... A) Distance. B) Speed. C) Velocity. D) Displacement. Show Answer Correct Answer: A) Distance. 22. For projectile motion the velocity in the x direction is ..... Therefore, acceleration equals ..... A) Constant; 0. B) Variable; 0. C) Constant;-9.8. D) Variable;-9.8. Show Answer Correct Answer: A) Constant; 0. 23. What are the units for velocity? A) M/s. B) M/s$^{2}$. C) M. D) S/m. Show Answer Correct Answer: A) M/s. 24. 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) 0.15 m. B) 0.46 m. C) 0.92. D) 1.8 m. Show Answer Correct Answer: B) 0.46 m. 25. Subtract and round to the appropriate number of significant digits. $65.76-11.3$ A) 54.46. B) 54.4. C) 54.5. D) 54. Show Answer Correct Answer: C) 54.5. ← PreviousNext →Related 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 8Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 9Class 11 Physics (Part I) Chapter 2 Kinematics Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books