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. V1 x A1=v2 x A2






2. Heat into system - work done by system






3. 1 / period (time)






4. 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.






5. Distance traveled / time






6. Force per unit area






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






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






9. 18600 miles/sec






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






11. Z+n






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






13. Sounds below 30 Hz






14. Force per unit area






15. Decreases






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






17. 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.






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






19. T^4






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






21. Sounds above 20 -000 Hz






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






23. Hf






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






25. The level stays the same






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






27. 1.25 kg/m^3






28. Heat Q= mass of sample x specific heat x temp change






29. Believed that the natural state of objects was to be at rest






30. Heat Q= mass of sample x specific heat x temp change






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






32. The center of an object






33. Hf






34. 25%






35. C / f






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






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






38. Number density x temperature






39. Rod with forces applied at opposite ends in opposite directions






40. 100 -000 n/m^2






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






42. P x u x A






43. Wavelength x frequency






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






45. Number density x temperature






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






47. It increases






48. The effectiveness of a material in conducting heat






49. 1 -000 kg/m^3






50. Mass x specific heat x temperature change