This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 24 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the temperature in Kelvin of a material that is-28.0 C A) 0K. B) 28.0K. C) 245K. D) 273K. Show Answer Correct Answer: C) 245K. 2. Question 1. A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is A) Zero km. B) 10 km. C) 30 km. D) 50 km. Show Answer Correct Answer: C) 30 km. 3. Specific latent heat of vaporisation is A) The amount of heat required to change 1 kg of the substance from the solid to liquid phase without change in temperature. B) The amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature. C) The amount of heat required to change the temperature 1 kg of the substance by 1 degree Celcius. D) None of above. Show Answer Correct Answer: B) The amount of heat required to change 1 kg of the substance from the liquid to gaseous phase without change in temperature. 4. The radius of curvature of a mirror is 20cm the focal length is A) 20 cm. B) 10 cm. C) 40 cm. D) 5 cm. Show Answer Correct Answer: B) 10 cm. 5. Newton's Third Law states that ..... A) An object at rest, stays at rest; an object in motion stays in motion. B) Acceleration occurs when a force is exerted on an object. C) For every action, there is an equal and oppostite reaction. D) None of above. Show Answer Correct Answer: C) For every action, there is an equal and oppostite reaction. 6. Which of the following do you think travel in uniform velocity? A) A car in a circular track. B) The Earth around the Sun. C) A man running in a straight line. D) A car travelling at uniform speed in a traffic road. Show Answer Correct Answer: C) A man running in a straight line. 7. What does the prefix pico stand for? A) 10-12. B) 10-9. C) 10 9. D) 10 12. Show Answer Correct Answer: A) 10-12. 8. Newton's second law states that F=ma (force is mass times acceleration) which example would have the GREATEST? A) A 10 kg ball thrown with a 50 N force. B) A 1 kg ball thrown with a 0.5N force. C) A 50 kg student launched by a 100 N catapult. D) A) a 500 kg car accelerated by 1000 N from the engine. Show Answer Correct Answer: A) A 10 kg ball thrown with a 50 N force. 9. What is reflection? A) Reflection is the bouncing of light off the surface that it strikes on. B) Reflection is the absorbing of light off the surface that it strikes on. C) Reflection is the bending of light off the surface that it strikes on. D) Reflection is the scattering of light off the surface that it strikes on. Show Answer Correct Answer: A) Reflection is the bouncing of light off the surface that it strikes on. 10. Which one is an Earth Wire? A) Brown. Provides the alternating potential difference. B) Blue. Completes the circuit and carries away current. C) Green and Yellow. Only carries current when there is a fault. D) None of above. Show Answer Correct Answer: C) Green and Yellow. Only carries current when there is a fault. 11. What direction must a boat crew move the oars to move the boat forward? A) Forward and backward. B) Forward. C) Backward. D) None of above. Show Answer Correct Answer: C) Backward. 12. Cole is learning physics vocabulary. He knows that displacement means which of the following? A) Distance 1/2 way between starting and ending points. B) 2 times the speed of a nonmoving object. C) His change in position. D) The distance between starting and ending point. Show Answer Correct Answer: D) The distance between starting and ending point. 13. Bonus question:What is the process to gather information and test hypothesis? A) Hypothesis. B) Experiment. C) Theory. D) Graph. Show Answer Correct Answer: B) Experiment. 14. If William pushes a 75N sofa up a ramp that is 5 meters long, what is the amount of work that William does? A) 400 Joules. B) 350 Joules. C) 3 Newtons. D) 375 Joules. Show Answer Correct Answer: D) 375 Joules. 15. A hiker walks 5 kilometers due north and then 7 kilometers due east. A) 2 km. B) 8.6 km. C) 12 km. D) 12.6 km. Show Answer Correct Answer: B) 8.6 km. 16. After a balloon is rubbed against wool, the two objects will ..... each other because they have ..... charges A) Attract; like. B) Attract, opposite. C) Repel; like. D) Repel; opposite. Show Answer Correct Answer: B) Attract, opposite. 17. Write-4, 500, 000 in scientific notation. A) 4.5 x 106. B) 4.5 x 10-6. C) -4.5 x 106. D) -4.5 x 10-7. Show Answer Correct Answer: C) -4.5 x 106. 18. Express the following in scientific notation:1010.10 A) 1.01010 x 103. B) 1.01010 x 105. C) 1.01010 x 10-3. D) 1.01010 x 10-5. Show Answer Correct Answer: A) 1.01010 x 103. 19. A resultant force of 500N causes a body to accelerate at 20m/s2. What is the mass of the body? A) 2.5kg. B) 25kg. C) 1000kg. D) 10000kg. Show Answer Correct Answer: B) 25kg. 20. The speed of an object can be represented by: A) Bar graph. B) Histograms. C) Pie chart. D) Distance-time graph or line graph. Show Answer Correct Answer: D) Distance-time graph or line graph. ← 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