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. 1.25 kg/m^3






2. A disturbance that propagates through a medium






3. Change in velocity / time






4. Analized brahe's data and verified the heliocentric theory. These regularities are known as Helpers Laws of Planetary motion.






5. The center of an object






6. If energy is transferred and the internal energy of system B decreases by some amount then the internal energy of system A must incrase by the same amount.






7. Decreases






8. 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).






9. New theory that explained behavior at the atomic level






10. Mass x velocity






11. Mass x gravity






12. 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.






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






14. Sounds above 20 -000 Hz






15. Not easy to knock over






16. Fbottom=Ftop+mg where mg is the weight of the volume






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






18.






19. Force x lever arm






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






21. Distance traveled / time






22. Change in velocity / time






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






24. Because nothing stops it






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






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

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27. The level stays the same






28. It increases






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






30. Because nothing stops it






31. 1 / period (time)






32. 2p x square root L/g






33. Current x resistance






34. 1.25 kg/m^3






35. 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.






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






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






38. Net force=0 net torque=0






39. Velocity squared / radius






40. Voltage / current






41. Z+n






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






43. Pressure x area






44. T^4






45. 10 m/s^2






46. Speed of light / wavelength






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






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






49. 18600 miles/sec






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