This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 25 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 25 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of friction is the strongest? (has the greatest force) A) Kinetic friction (sliding friction). B) Rolling friction. C) Static friction. D) All forms of friction are equal for the same object. Show Answer Correct Answer: C) Static friction. 2. Formula for force A) F = m*a. B) F = m/a. C) F = d*a. D) F = d/a. Show Answer Correct Answer: A) F = m*a. 3. A horizontal, uniform board of weight 125 N and length 4 m is supported by vertical chains at each end. A person weighing 500 N is sitting on the board. The tension in the right chain is 250 N.How far from the left end of the board is the person sitting? A) 0.4 m. B) 1.5 m. C) 2 m. D) 2.5 m. E) 3 m. Show Answer Correct Answer: B) 1.5 m. 4. In a longitudinal wave, the particles move .....? A) Back and forth. B) Up and down. C) Not at all. D) At a 90 degree angle. Show Answer Correct Answer: A) Back and forth. 5. In which generator does the coil cuts the magnetic flux A) C generator. B) C generator. C) C generator and d.c generator. D) None of above. Show Answer Correct Answer: C) C generator and d.c generator. 6. When two objects are rubbed together, there is a transfer of electrons. How do you determine which object acquires the transferred electrons? A) Always transfer from the bigger to the smaller object, to make it even. B) Transfer is based on the initial charge of the two objects. C) Transfer is based on how much electron affinity that each object has. D) Always transfer from the more negative to the more positive object. Show Answer Correct Answer: C) Transfer is based on how much electron affinity that each object has. 7. Distance and direction of an object from its starting point A) Displacement. B) Direction. C) Speed. D) Velocity. Show Answer Correct Answer: A) Displacement. 8. The SI unit for measuring heat is the A) Pascal. B) Kelvin. C) Joule. D) Calorie. Show Answer Correct Answer: C) Joule. 9. At a constant temperature, the ..... and ..... of a gas of fixed mass are inversely proportional A) Pressure, volume. B) Pressure, area. C) Temperature, surface area. D) None of above. Show Answer Correct Answer: A) Pressure, volume. 10. You are given three media A, B and C of refractive index 1.33, 1.65 and 1.46. The medium in which the light will travel fastest is A) A. B) B. C) C. D) Equal in all three media. Show Answer Correct Answer: A) A. 11. Equation for weight A) Gravitational force / mass. B) Mass + gravitational force. C) Mass x gravitational force. D) Mass / gravitational force. Show Answer Correct Answer: C) Mass x gravitational force. 12. A student tries to magnetise a short steel rod. Which of these tests will show that he has been successful? A) Both ends of a permanent magnet attract the rod. B) One end of a permanent magnet repels the rod. C) The rod picks up a small piece of paper. D) When freely suspended, the rod points in any direction. Show Answer Correct Answer: B) One end of a permanent magnet repels the rod. 13. It is easier to cut vegetables with sharp end of knife rather than with its blunt end because A) Smaller area provides more pressure for the applied force. B) Smaller area provides less pressure for the applied force. C) None of the above. D) None of above. Show Answer Correct Answer: A) Smaller area provides more pressure for the applied force. 14. If an owl has a speed of 50 m/s, and has a time of 10 s. What is the distance that the owl traveled? A) 500 m. B) 5 m. C) 10 m. D) None of above. Show Answer Correct Answer: A) 500 m. 15. A ..... is an idealised body that is able to absorb all electromagnetic radiation that falls on it ..... is an idealized body that is able to absorb all electromagnetic radiation that falls on it ..... A) Black body. B) White body White body. C) Planck's bodyJasad Planck. D) Radiator bodyJasad transmitter. Show Answer Correct Answer: A) Black body. 16. In the steps of the scientific method, what is the next step after formulating and objectively testing hypotheses? A) Interpreting results. B) Stating conclusions. C) Conducting experiments. D) Making observations and collecting data. Show Answer Correct Answer: A) Interpreting results. 17. What kind(s) of objects have inertia? A) All objects with mass. B) Only objects at rest. C) Only objects in motion. D) Only objects whose motion is being changed. Show Answer Correct Answer: A) All objects with mass. 18. WHO IS ACHARYA KANADA A) AN ANCIENT PHILOSOPHER. B) AN ANCIENT INDIAN PHILOSOPHER. C) CANADIAN PHILOSOPHER. D) AN ANCIENT CANADIAN PHILOSOPHER. Show Answer Correct Answer: B) AN ANCIENT INDIAN PHILOSOPHER. 19. A computer monitor combines the ..... to create any color in the rainbow A) Additive primary colors. B) Waves. C) Subtractive primary colors. D) Photovoltaic cells. Show Answer Correct Answer: A) Additive primary colors. 20. A motorboat, which has a speed of 5 meters per second in still water, is headed east as it crosses a river flowing south at 3.3 meters per second. What is the magnitude of the boat's resultant velocity with respect to the starting point? A) 3.3 m/s. B) 5.0 m/s. C) 6.0 m/s. D) 8.3 m/s. Show Answer Correct Answer: C) 6.0 m/s. ← PreviousNext →Related QuizzesPhysics QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books