Test your basic knowledge |

Everyday Physics

Subjects : science, literacy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. How much torque it takes to get an object rotating






2. Kg/m^3






3. Compiled the first detailed observational data on planetary motion (mars) - without a telescope.






4. Why things move






5. The sum of the energy of all the molecules in the system






6. Rod with forces applied at opposite ends in the same direction






7. The change in internal energy= the heat absorbed- the work done






8. 2 -700 kg/m^3






9. The efficiency with which an object emits thermal radiation. Is a number between 0 and 1. A good emitter has an e close to 1.






10. Wrote Principia in 1687. Made the 3 laws of mechanics and law of gravity. He also invented calculus.






11. Tube cross section area A - flow speed u vfr= u x A (m/s x m^2)






12. P x u x A






13. Sounds below 30 Hz






14.






15. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s






16. The energy that flows from one system to another because of their temperature difference.






17. F=mass x acceleration

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18. Are wider at the base (which lowers their center of gravity)






19. 5/9 [T(F)-32]






20. Time= the square root of 2 x height / acceleration due to gravity






21. V x A= constant






22. Rod with forces applied at opposite ends in opposite directions






23. 18600 miles/sec






24. The level stays the same






25. Force per unit area






26. Maximum displacement from equilibrium






27. Rod with forces applied at opposite ends in opposite directions






28. Voltage / current






29. P x u x A






30. C/n






31. The total force (positive and negative) acting upon an object






32. An object that is thrown or struck or shot and then travels under the influence of gravity






33. P + density x g h






34. Weight of displaced water=volume of displaced water in liters x 10 n / liter






35. Weight of displaced water=volume of displaced water in liters x 10 n / liter






36. Sounds above 20 -000 Hz






37. 1.25 kg/m^3






38. 25%






39. The heat transfer by electromagnetic waves - thermal light waves






40. Work done / heat in






41. Sounds above 20 -000 Hz






42. Mass x velocity






43. Heat into system - work done by system






44. 11 -000 kg/m^3






45. 100 -000 n/m^2






46. Initial velocity= the square root of 2gh






47. New theory that explained behavior at the atomic level






48. Initial velocity = acceleration x time






49. 10 m/s^2






50. Number density x temperature