This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Physics (Part I) Chapter 4 Work – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Physics (Part I) Chapter 4 Work Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of simple machine consists of a flat, slanted surface? A) Lever. B) Inclined plane. C) Wheel and axle. D) Pulley. Show Answer Correct Answer: B) Inclined plane. 2. What are the two necessary conditions for work to be done? A) Force and Velocity. B) Force and Displacement. C) Force and Time. D) None of the above. Show Answer Correct Answer: B) Force and Displacement. 3. Which of the following quantities is/are conserved during elastic collision? A) Kinetic energy. B) Momentum. C) Both of these. D) None of these. Show Answer Correct Answer: C) Both of these. 4. To find gravitational potential energy on Earth we use which of the following equations? A) PE = m*g*h. B) PE = m*v*d. C) PE = m*g*s. D) PE = m*g/h. E) PE = m*v/g. Show Answer Correct Answer: A) PE = m*g*h. 5. The product of the net force on an object and the distance through which the object is moved A) Joule. B) Power. C) Work. D) Energy. Show Answer Correct Answer: C) Work. 6. When an object is raised to a certain height above ground, it possesses A) Kinetic energy. B) Elastic Potential Energy. C) Gravitational Potential Energy. D) None of the above. Show Answer Correct Answer: C) Gravitational Potential Energy. 7. "A gold ball rolling down the hill" . In what type of mechanical energy does it fall? A) Potential Energy. B) Kinetic Energy. C) Both. D) None of the above. Show Answer Correct Answer: B) Kinetic Energy. 8. This is the ability to do work A) Energy. B) Power. C) Force. D) None of the above. Show Answer Correct Answer: A) Energy. 9. A 500 kg roller coaster car moves at 10 m/s while it is 20 m in the air. What type(s) of energy does the car have? A) Kinetic energy. B) Gravitational potential energy. C) Spring potential energy. D) A and b. Show Answer Correct Answer: D) A and b. 10. What is the scientific definition of work? A) Force multiplied by displacement. B) Force multiplied by time. C) Force plus displacement. D) Force divided by displacement. Show Answer Correct Answer: A) Force multiplied by displacement. 11. Energy that comes from burning dead plants, organisms, and waste products is called ..... A) Wind energy. B) Solar energy. C) Biomass energy. D) Geothermal energy. Show Answer Correct Answer: C) Biomass energy. 12. If velocity of object is increased by 5 then the kinetic energy will increase by A) 10 times. B) 25 times. C) 50 times. D) 5 times. Show Answer Correct Answer: B) 25 times. 13. When positive work by an external force is done on a system, the energy of the system will ..... A) Increase. B) Decrease. C) Remain the same. D) None of the above. Show Answer Correct Answer: A) Increase. 14. Force is expressed in what? A) Newtons. B) Meters. C) Watts. D) None of the above. Show Answer Correct Answer: A) Newtons. 15. The units for power. A) Watts. B) Power. C) Joules. D) Work. E) No choice is correct. Show Answer Correct Answer: A) Watts. 16. What is the kinetic energy of a 44 kg cheetah running at 31 m/s? A) 1, 364 J. B) 682 J. C) 21, 142 J. D) Not enough information. Show Answer Correct Answer: C) 21, 142 J. 17. This is the measure of energy transferred to an object through force along a displacement. A) Kinetic Energy. B) Work. C) Power. D) Potential Energy. Show Answer Correct Answer: B) Work. 18. In Elastic collision A) Total linear momentum and kinetic enery conserved. B) Total linear momentum only conserved. C) Not obey conservation laws. D) None of these. Show Answer Correct Answer: A) Total linear momentum and kinetic enery conserved. 19. Calculate the power of an electric motor that can lift 800 kg of water to store in a tank at a height of 1500cm in 20s. (g=10m/s$^{2}$). A) 6kW. B) 6W. C) 6000kW. D) 600W. Show Answer Correct Answer: A) 6kW. 20. Power is the RATE at which work is done. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. A car does 3000 J of work in moving a distance of 50 m. What is the average force applied? A) 60 N. B) 100 N. C) 75 N. D) 50 N. Show Answer Correct Answer: A) 60 N. 22. What form of energy is being used when a person pushes heavy boxes across the floor? A) Electrical energy. B) Mechanical energy. C) Heat energy. D) Sound energy. Show Answer Correct Answer: B) Mechanical energy. 23. Ahmad lifts a 50 kg hiking bag onto his sholuders through a vertical distance of 1.65 m in 3s. Calculate the power produced by Ahmad. A) 809.33W. B) 269.78W. C) 27.5W. D) 82.5W. Show Answer Correct Answer: B) 269.78W. 24. A spring-loaded gun shoots a plastic ball with a launch speed of 2.0 m/s. If the spring is compressed twice as far, the ball's launch speed will be: A) 1.0 m/s. B) 2.0 m/s. C) 2.8 m/s. D) 4.0 m/s. E) 16 m/s. Show Answer Correct Answer: D) 4.0 m/s. 25. These are the unit for work done except A) Kg m$^{2}$ s$^{-2}$. B) Joule. C) Newton meter. D) Nm$^{-2}$. Show Answer Correct Answer: D) Nm$^{-2}$. ← 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