This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 45 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A column of mercury (density = 13, 600 kg/m3) has a height of 74 cm. Using pressure = d x g x h and SI units (d is density), calculate the pressure at the bottom of the column. A) 640, 100 N. B) 100, 640 N. C) 100, 640 Pa. D) 600, 100 Pa. Show Answer Correct Answer: C) 100, 640 Pa. 2. Water molecules have the greatest kinetic energy in A) Ice at 0 $^ \circ$C. B) Water at 90 $^ \circ$C. C) Water at 373 K. D) Steam at 150 $^ \circ$C. Show Answer Correct Answer: D) Steam at 150 $^ \circ$C. 3. What is the standard abbreviation for seconds? A) Sec. B) S. C) Sds. D) T. Show Answer Correct Answer: B) S. 4. The emission of electrons from the surface of a heated metal is called A) Vaporization. B) Condensation. C) Cathode emission. D) Thermionic emission. Show Answer Correct Answer: D) Thermionic emission. 5. SI unit of measurments length A) Kilogran. B) Meter. C) Second. D) Kilometer. Show Answer Correct Answer: B) Meter. 6. Vf is the symbol for which physics concept? A) Acceleration. B) Final velocity. C) Time. D) Distance. E) Initial Velocity. Show Answer Correct Answer: B) Final velocity. 7. Constant Speed is ..... A) The speed of an object calculated by taking the total distance and how long it took that object to move that distance. B) When an object moves at the same speed for an extended period of time. C) The speed and direct an object is moving. D) None of above. Show Answer Correct Answer: B) When an object moves at the same speed for an extended period of time. 8. Calculate the energy absorbed by 30 g of 100 $^ \circ$C water that is turned into 100 $^ \circ$C . A) 67 800 J. B) 6 7800 J. C) 678 J. D) 67.8 J. Show Answer Correct Answer: A) 67 800 J. 9. Velocity consists of both ..... A) Time & Distance. B) Speed & Direction. C) Time & Direction. D) None of above. Show Answer Correct Answer: B) Speed & Direction. 10. Divide:(6.9 x 107) / (2.3 x 10-3) A) 3 x 1010. B) 3 x 104. C) 3 x 10-4. D) 3 x 10-11. Show Answer Correct Answer: A) 3 x 1010. 11. The length of the mercury column in a non-calibrated mercury-in-glass thermometer is 20 cm when its bulb is immersed in boiling water. What would the temperature be if the length of the mercury column is 14 cm? A) $ 70^\circ C$. B) $ 20^\circ C$. C) $ 14^\circ C$. D) $ 30^\circ C$. Show Answer Correct Answer: A) $ 70^\circ C$. 12. SI unit of Measurements mass? A) Kilogram. B) Gram. C) Meter. D) Second. Show Answer Correct Answer: A) Kilogram. 13. The units of spring constant are ..... A) Nm. B) N/m. C) Nm2. D) N/m2. Show Answer Correct Answer: B) N/m. 14. Si unit for weight A) Neutons. B) Gramms. C) Kilogramms. D) Newtons. Show Answer Correct Answer: D) Newtons. 15. A change in state of matter A) Latent heat. B) Specific heat capacity. C) Phase change. D) None of above. Show Answer Correct Answer: C) Phase change. 16. Motion occurs when ..... A) The speed of an object changes. B) An object's distance from another object changes. C) There is an increase or decrease in an object's speed. D) None of above. Show Answer Correct Answer: B) An object's distance from another object changes. 17. A 70.0 kg runner is travelling at 5.05 m/s. What is their kinetic energy? A) 892 J. B) 177J. C) 892 KJ. D) 3.47x103 J. Show Answer Correct Answer: A) 892 J. 18. After grounding, how will objects interact? A) Both will have the same charge, so they attract one another. B) Both will be neutral, so they will attract one another. C) Botn will be neutral, so they will repel one another. D) Both will be neutral, so they will not attract nor repel. Show Answer Correct Answer: D) Both will be neutral, so they will not attract nor repel. 19. If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest? A) 100 mL. B) 1000 mL. C) They both heat up at the same speed. D) They cool down. Show Answer Correct Answer: A) 100 mL. 20. Decreasing speed A) Distance. B) Velocity. C) Acceleration. D) None of above. Show Answer Correct Answer: C) Acceleration. ← 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