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. The heat transfer by electromagnetic waves - thermal light waves






2. Sounds above 20 -000 Hz






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






4. Wavelength x frequency






5. Mass x velocity






6. The total disorder of an object






7. Decreases






8. T^4






9. The study of heat and its transformation into mechanical energy






10. Voltage / current






11. Heat into system - work done by system






12. A disturbance that moves through something






13. You cant get as much out as you put in






14. If the CG is above the edge - the object will not fall






15. Fbottom-Ftop=mg=(density x vol) x g






16. Pascal (Pa) or pounds per square inch (psi)






17. P(P2-P1)D^4/128Ln n=fluid's viscosity






18. 1 -000 kg/m^3






19. C / f






20. V x A= constant






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






22. ?






23. Not easy to knock over






24. 10 m/s^2






25. Believed that the natural state of objects was to be at rest






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






27. The level stays the same






28. Pascal (Pa) or pounds per square inch (psi)






29. 2 -700 kg/m^3






30. Solids - liquids - gases






31. F=mass x acceleration

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32. Shows in 1905 that newtons laws were not valid for objects moving with speeds near the speed of light.






33. 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.






34. Z+n






35. Sounds below 30 Hz






36. Length of a wave






37. 1.25 kg/m^3






38.






39. The heat needed to raise the temperature of 1 pound of water by 1 degree F






40. A tendency for liquids to resist flowing.






41. Current x resistance






42. Mass x gravity






43. The level stays the same






44. Number density x temperature






45. 2 -700 kg/m^3






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






47. C / f






48. You can't get more work out than the energy you put in






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






50. Heat into system - work done by system