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. Sounds below 30 Hz






2. A disturbance that propagates through a medium






3. C/n






4. Mass x gravity






5. The level stays the same






6. A disturbance that propagates through a medium






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

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8. 1.25 kg/m^3






9. P x u x A






10. Net force=0 net torque=0






11. 10 m/s^2






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






13. Length of a wave






14. 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.






15. The level stays the same






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






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






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






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






20. Because nothing stops it






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






22. 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.






23. Time required to complete one cycle






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






25. The force that brings a system back to equilibrium






26. 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).






27. Time required to complete one cycle






28. Change in velocity / time






29. P x u x A






30. Force per unit area






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






32. Wavelength x frequency






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

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






35. It increases






36. If the temperature of system A is less then the temperature of system B then heat flows from B to A (hot to cold)






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






38. The force that brings a system back to equilibrium






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






40. 9/5T(C)+32






41. Pressure x area






42. Number density x temperature






43. A disturbance that moves through something






44. Not easy to knock over






45. ?






46. Z+n






47. Heat into system - work done by system






48. Z+n






49. P + density x g h






50. V x A= constant