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. Work done / heat in






3. Current x voltage energy/time (joules per second)






4. Sounds below 30 Hz






5. Velocity squared / radius






6. 25%






7. A disturbance that moves through something






8. C / f






9. Heat is carried from place to place by the bulk movement of either liquids or gasses






10. 2 -700 kg/m^3






11. How much torque it takes to get an object rotating






12. Speed of light / wavelength






13. ?






14.






15. The center of an object






16. Because nothing stops it






17. As the speed of a moving fluid increases - the pressure within the fluid decreases

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18. New theory that explained behavior at the atomic level






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






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






21. How much torque it takes to get an object rotating






22. Heat into system - work done by system






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






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






25. Heat is transferred directly through a material with no bulk movement of material






26. T=2p square root m/k frequency= square root k/m;/2p






27. The force that brings a system back to equilibrium






28. Mass x specific heat x temperature change






29. The amount of heat that is required to raise the temperature of one g of a substance by 1 degree C.






30. 10 m/s^2






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






32. 1.25 kg/m^3






33. 1 / period (time)






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






35. Heat into system - work done by system






36. Pressure x area






37. The study of how objects behave (from the very tiny to the very big - and from the beginning of the Universe to its ultimate fate).






38. 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.






39. V x A= constant






40. 2p x square root L/g






41. Distance traveled / time






42. ?






43. Sounds below 30 Hz






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






45. As the speed of a moving fluid increases - the pressure within the fluid decreases

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46. Decreases






47. Hf






48. Fluid flow velocity=u - fluid density=p (rho) - fluid pressure=P P +

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49. Why things move






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