This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 38 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 38 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When performing the calculation 34.530 g + 12.1 g + 1222.34 g the final answer must have A) Three significant figures. B) One decimal place. C) Two decimal places. D) Three decimal places. Show Answer Correct Answer: B) One decimal place. 2. Time taken for 20 swings is 46 seconds. how much time is needed for 1 swing A) 0.43478. B) 3.2. C) 20.46s. D) 2.3 seconds. Show Answer Correct Answer: D) 2.3 seconds. 3. N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair? A) 26.75 kg. B) 63.69 kg. C) 263.3 kg. D) 1123.5 kg. Show Answer Correct Answer: B) 63.69 kg. 4. Which of the following best explains why the sand at the beach is hotter than the water? A) Sand has a higher specific heat than water. B) Sand has a lower specific heat than water. C) There is more water than sand at the beach. D) There is more sand than water at the beach. Show Answer Correct Answer: B) Sand has a lower specific heat than water. 5. A 3 kg fish hangs from a fishing line, at rest. What is the tension in the string A) 3 N. B) 29.43 N. C) 29.43 kg. D) 3.27 N. Show Answer Correct Answer: B) 29.43 N. 6. Which of the following is the MOST suitable for measuring the diameter of a wire? A) Metric rule. B) Tape measure. C) Vernier Calipers. D) Micrometer screw gauge. Show Answer Correct Answer: D) Micrometer screw gauge. 7. It is an any subtances that has matter and takes up space by having volume A) Matter. B) Atom. C) Energy. D) Force. Show Answer Correct Answer: A) Matter. 8. What is the unit of magnetic flux density (B)? A) Henry (H). B) Weber (Wb). C) Ampere (A). D) Tesla (T). Show Answer Correct Answer: D) Tesla (T). 9. Calculate 345.009 g-23.009 g and give your answer with the appropriate number of significant figures. A) 322.00 g. B) 322 g. C) 322.000 g. D) 322. Show Answer Correct Answer: C) 322.000 g. 10. Identify at least two areas of physics involved in the following:Bungee jumping A) Vibrations and wave phenomena, electromagnetism. B) Mechanics, vibrations and wave phenomena. C) Optics, thermodynamics. D) Thermodynamics, mechanics. Show Answer Correct Answer: B) Mechanics, vibrations and wave phenomena. 11. What is transferred by a wave? A) Energy. B) Matter. C) Both energy & matter. D) None of above. Show Answer Correct Answer: A) Energy. 12. A race car circles a 1500 meter track 5 times.The total displacement of the race car is ..... A) Must know time to determine answer. B) 7500 meters. C) 0 meters. D) 1500 meters. Show Answer Correct Answer: C) 0 meters. 13. The branch of physics that deals with light and vision is called A) Prisms. B) Optics. C) Wavelength. D) None of above. Show Answer Correct Answer: B) Optics. 14. Branch of Physics that includes various areas of study based on quantum theory, which deals with the matter and electromagnetic radiation, and interactions between them. A) Quantum Physics. B) Electromagnetism. C) Atomic or Nuclear Physics. D) Thermodynamics. Show Answer Correct Answer: A) Quantum Physics. 15. Which of the following a scalar quantity? A) Energy. B) Acceleration. C) Velocity. D) Weight. Show Answer Correct Answer: A) Energy. 16. If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ..... A) One reaches a temperature of zero. B) They both have an equal temperature. C) One runs out of energy. D) None of above. Show Answer Correct Answer: B) They both have an equal temperature. 17. A measurement of the force of gravity on a person or object. A) Gravity. B) Friction. C) Weight. D) Mass. Show Answer Correct Answer: C) Weight. 18. Units of Force (F) A) S. B) Kg. C) M. D) N. Show Answer Correct Answer: D) N. 19. Is directly proportional to distance and inversely proportional to time A) Impuls. B) Speed. C) Kinetic energy. D) None of above. Show Answer Correct Answer: B) Speed. 20. Find the velocity of a plane that traveled 3000 miles west in 5 hours. A) 65 mph west. B) 6 mph west. C) 600 mph west. D) 6000 mph west. Show Answer Correct Answer: C) 600 mph west. ← 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