This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Work done = Force x ..... A) Distance. B) Acceleration. C) Velocity. D) Speed. Show Answer Correct Answer: A) Distance. 2. You do a pull-up, lifting yourself by 0.5 m in 2 seconds. If your weight is 600 N, how much work did you do, and what was your power output during lifting? A) 50 W. B) 100 W. C) 150 W. D) 200 W. Show Answer Correct Answer: C) 150 W. 3. A ball tied to a string is being whirled around in a circle. What can you say about the work done by tension on the string? A) Tension does no work at all. B) Tension does negative work. C) Tension does positive work. D) Tension does maximum work. Show Answer Correct Answer: A) Tension does no work at all. 4. If a 2 kg ball is traveling at 4 meters per second, what is its kinetic energy? A) 1 J. B) 2 J. C) 4 J. D) 8 J. E) 16 J. Show Answer Correct Answer: E) 16 J. 5. A constant force F, acting on a car of mass m, moves the car up the slope through a distance s at constant velocity v. The angle of the slope to the horizontal is $\alpha$ A) $\frac{mgs\sin\alpha}{Fv}$. B) $\frac{mv}{Fs}$. C) $\frac{mv^2}{2Fs}$. D) $\frac{mg\sin\alpha}{F}$. Show Answer Correct Answer: D) $\frac{mg\sin\alpha}{F}$. 6. All of the following are an example of chemical energy except for: A) Batteries. B) Shoe. C) Hamburger. D) Fruit. Show Answer Correct Answer: B) Shoe. 7. In order to do work on an object, the force you exert must be ..... A) The maximum amount of force you are able to exert. B) In the same direction as the object's motion. C) In a direction opposite to Earth's gravitational force. D) Quick and deliberate. Show Answer Correct Answer: B) In the same direction as the object's motion. 8. For work to be done on an object, A) Some force need only be exerted on the object. B) The object must move some distance as a result of a force. C) The object must move, whether or not a force is exerted on it. D) The object must not move. Show Answer Correct Answer: B) The object must move some distance as a result of a force. 9. Work is a transfer of what? A) Energy. B) Power. C) Force. D) None of the above. Show Answer Correct Answer: A) Energy. 10. A force of 12 N is used to lift a box 0.5 meters above a floor. What amount of work was done to lift the box? A) 6.0 J. B) 11.5 J. C) 12.5 J. D) 24.0 J. Show Answer Correct Answer: A) 6.0 J. 11. The kinetic energy of a 1.50 kg sphere just hitting the ground is 270.00 J. What is the height of the sphere before it was dropped? A) 18.3 m. B) 27.5 m. C) 180.0 m. D) 405.0 m. Show Answer Correct Answer: A) 18.3 m. 12. A man of mass 50 kg runs up the stairs in 10 s. If the height of each step is 20 cm and number of steps is 50. What is the power of the man? A) 600W. B) 250 W. C) 300 W. D) 500 W. Show Answer Correct Answer: D) 500 W. 13. What is the unit of measure for energy? A) Meters. B) Newton. C) Watt. D) Joule. Show Answer Correct Answer: D) Joule. 14. What is the unit of work and energy in the International System of Units (SI)? A) Pascal. B) Watt. C) Newton. D) Joule. Show Answer Correct Answer: D) Joule. 15. What is the mass of a moving object that has 100 Joules of KE and moves at a velocity of 2 m/s? A) 50 kg. B) 200 kg. C) 25 kg. D) 100 kg. Show Answer Correct Answer: A) 50 kg. 16. A bird of mass 90g is flying in the air at a speed of 10ms$^{-1}$. The bird collides with a window, and is unharmed. How much work does the window do on the bird? A) 4.5J. B) 4500J. C) 45J. D) 450J. E) 0.45J. Show Answer Correct Answer: A) 4.5J. 17. When a 65 kg skydiver jumps from a plane, her speed steadily increases until air resistance provides a force that balances the force due to free fall. How fast is the skydiver falling if her kinetic energy at the moment is 704000J? A) 21661.53 m/s. B) 147.17 m/s. C) 22880.0 km/s. D) 10830.76 m/s. Show Answer Correct Answer: B) 147.17 m/s. 18. Which quantity has the greatest influence on the amount of kinetic energy a large truck has while moving down the highway? A) It's mass. B) It's weight. C) It's velocity. D) It's size. E) None of the above. Show Answer Correct Answer: C) It's velocity. 19. The work done will be zero when the angle between the force and the distance is A) 45. B) 60. C) 90. D) 180. Show Answer Correct Answer: C) 90. 20. Elastic potential energy is energy stored in object that are compressed or ..... A) Movement. B) Stored. C) Harnessed. D) Pulled. Show Answer Correct Answer: B) Stored. 21. An object moves in a straight line on a ROUGH horizontal surface. If the net work done on the object is zero, then ..... A) The object has zero kinetic energy. B) The object moves at constant speed. C) The object moves at constant acceleration. D) There is no frictional force acting on the object. Show Answer Correct Answer: B) The object moves at constant speed. 22. An elephant with a mass of 5500 kg, moves with 1, 000, 000 J of kinetic energy. How fast does the elephant move? A) 363.63 m/s. B) 181.81 m/s. C) 13.48 m/s. D) 19.07 m/s. Show Answer Correct Answer: D) 19.07 m/s. 23. A large stone raised to the top of a hill is known to have this type of energy ..... A) Elastic Potential Energy. B) Chemical Energy. C) Kinetic Energy. D) Gravitational Potential Energy. Show Answer Correct Answer: D) Gravitational Potential Energy. 24. A person trying to lose weight by burning fat lifts a mass of 10 kg up to a height of 1 m 1000 times. Assume that the potential energy lost each time he lowers the mass is dissipated. How much fat will he use up considering the work done only when the weight is lifted up? Fat supplies $3.8X10^7J$ $9.8m/s^2$ A) $12.89X10^{-3}kg$. B) $2.45X10^{-3}kg$. C) $6.45X10^{-3}kg$. D) $9.89X10^{-3}kg$. Show Answer Correct Answer: A) $12.89X10^{-3}kg$. 25. A force 6i-2j act on a body the give a work done of 16Jand the angle between the Force and the distance is 36.9$^\circ$. The magnitude of the distance is A) -2m. B) 3.8m. C) 4m. D) 3.2m. Show Answer Correct Answer: D) 3.2m. ← PreviousNext →Related QuizzesClass 11 Physics (Part I) Chapter 4 Work Quiz 1Class 11 Physics (Part I) Chapter 4 Work Quiz 2Class 11 Physics (Part I) Chapter 4 Work Quiz 3Class 11 Physics (Part I) Chapter 4 Work Quiz 4Class 11 Physics (Part I) Chapter 4 Work Quiz 5Class 11 Physics (Part I) Chapter 4 Work Quiz 6Class 11 Physics (Part I) Chapter 4 Work Quiz 7Class 11 Physics (Part I) Chapter 4 Work Quiz 8Class 11 Physics (Part I) Chapter 4 Work Quiz 9Class 11 Physics (Part I) Chapter 4 Work Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books