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. Mass x specific heat x temperature change






2. The change in internal energy= the heat absorbed- the work done






3. C / f






4. The level stays the same






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






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






7. Not easy to knock over






8. The first to do experimental studies of the laws of motion and was Imprisoned by Pope Urban VIII in 1633 for advocating the Copernican theory - also know as the heliocentric theory - that the earth was a planet revolving around the sun.






9. Work done / heat in






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






11. 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.






12. The total disorder of an object






13. 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.






14. Kg/m^3






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






16. Sounds below 30 Hz






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






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






19. 2p x square root L/g






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






21. Number density x temperature






22. Number density x temperature






23. V x A= constant






24. Hf






25. Voltage / current






26. 1.25 kg/m^3






27. Decreases






28. The force that brings a system back to equilibrium






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






30. 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.






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






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






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






34. T(C) +273






35. ?






36. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s






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






38. 2 -700 kg/m^3






39. A disturbance that moves through something






40. V1 x A1=v2 x A2






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






42. 100 -000 n/m^2






43. Time required to complete one cycle






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






45. Gallons per minute (gpm) - liters/s - cubic feet per minute (cfm) or m^3/s






46. Mass x velocity






47. Wavelength x frequency






48. Solids - liquids - gases






49. A disturbance that moves through something






50. 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.