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. Why things move






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






3. Number density x temperature






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






5. It increases






6. Solids - liquids - gases






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






8. 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.






9. Speed of light / wavelength






10. Length of a wave






11. The total disorder of an object






12. Maximum displacement from equilibrium






13. 2 -700 kg/m^3






14. Not easy to knock over






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






16. Mass x specific heat x temperature change






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






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






19. 1.25 kg/m^3






20. The effectiveness of a material in conducting heat






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






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

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






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






25. New theory that explained behavior at the atomic level






26. Initial velocity= the square root of 2gh






27. Mass x gravity






28. Speed of light / wavelength






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






30. Heat into system - work done by system






31. Initial velocity= the square root of 2gh






32. 2 -700 kg/m^3






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






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






35. Time required to complete one cycle






36. Mass x velocity






37. Kg/m^3






38. Current x resistance






39. Force per unit area






40. 1 -000 kg/m^3






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






42. 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).






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






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






45. Hf






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






47. 25%






48. V x A= constant






49. Change in velocity / time






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