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. Force per unit area






2. Decreases






3. Equals total momentum after collision






4. A disturbance that propagates through a medium






5. P x u x A






6. Sounds above 20 -000 Hz






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






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






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






10. Speed of light / wavelength






11. Mass x velocity






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






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






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






15. 18600 miles/sec






16. 11 -000 kg/m^3






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






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






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






20. Sounds above 20 -000 Hz






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






22. Hf






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






24. The combination of force and point of application






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






26. Force x lever arm






27. It increases






28. Voltage / current






29. Number density x temperature






30. Heat into system - work done by system






31. Work done / heat in






32. Mass x specific heat x temperature change






33. Net force=0 net torque=0






34. Mass x velocity






35. Kg/m^3






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






37.






38. F=mass x acceleration

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






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






41. The center of an object






42. 2 -700 kg/m^3






43. 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.






44. Because nothing stops it






45. Net force=0 net torque=0






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






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






48. 1 / period (time)






49. Speed of light / wavelength






50. New theory that explained behavior at the atomic level