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






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






3. The center of an object






4. 2 -700 kg/m^3






5. The effectiveness of a material in conducting heat






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






7. ?






8. Pressure x area






9. C / f






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






11. 11 -000 kg/m^3






12. Velocity squared / radius






13. Decreases






14. Pressure x area






15. Why things move






16. T(C) +273






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






18. F=mass x acceleration

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19. Solids - liquids - gases






20. The level stays the same






21. Hf






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






23. It increases






24. 2p x square root L/g






25. Time required to complete one cycle






26. Initial velocity = acceleration x time






27. Work done / heat in






28. 25%






29. Change in velocity / time






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






31. A disturbance that propagates through a medium






32. 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.






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






34. Net force=0 net torque=0






35. Because nothing stops it






36. 5/9 [T(F)-32]






37. F=mass x acceleration

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38. Heat into system - work done by system






39. Mass x gravity






40. 100 -000 n/m^2






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

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42. ?






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






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






45.






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






47. A disturbance that propagates through a medium






48. Equals total momentum after collision






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






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