1 / 51

Jeopardy

Dive into the fundamental principles of electromagnetic waves and magnetism in this comprehensive review of PHY101 Chapter 8. Explore the behavior of magnetic fields, the laws governing electromagnetic interactions, and the characteristics of various EM waves. Discover key equations, such as the magnetic field force equation and Faraday's Law, alongside practical applications including radio transmission and blackbody radiation. This resource is essential for students looking to reinforce their understanding of these crucial scientific concepts.

eamon
Télécharger la présentation

Jeopardy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Jeopardy PHY101 Chapter 8 Review Study of EM Waves Cheryl Dellai

  2. Study of EM Waves

  3. Magnetism $100 Like poles (repel/attract). ANSWER

  4. Magnetism $200 Magnetic field of the Earth on average. ANSWER

  5. Magnetism $300 Magnetic field at Phoenix. ANSWER

  6. Magnetism $400 What is the magnetic field force equation? ANSWER

  7. Interactions $100 What can change in the magnetic flux? ANSWER

  8. Interactions $200 What is Faraday's Law? ANSWER

  9. Interactions $300 What is Ampere-Maxwell's Law? ANSWER

  10. Interactions$400 What is Lenz’s Law? ANSWER

  11. EM Waves $100 How are EM waves created? ANSWER

  12. EM Waves $200 A radio transmitter broadcasts at a frequency of 200,000 Hz. What is the wavelength of the wave? ANSWER

  13. EM Waves $300 What is the wavelength of the peak of the blackbody radiation curve for something at 3,000 K—the temperature of the filament of a light bulb? What type of EM wave is this? ANSWER

  14. EM Waves$400 About how hot does something have to get to glow red hot? ANSWER

  15. EM Spectrum $100 The cosmic background radiation has _____. ANSWER

  16. EM Spectrum $200 The main form of radiation that our bodies emit is __________. ANSWER

  17. EM Spectrum $300 __________ radiation is emitted from a small hole in a furnace. ANSWER

  18. EM Spectrum $400 The total radiant power emitted by a blackbody is proportional to its __________ raised to the fourth power. ANSWER

  19. Atmosphere $100 The ionosphere reflects __________ frequency radio waves. ANSWER

  20. Atmosphere $200 The ozone layer absorbs __________ radiation from sunlight. ANSWER

  21. Atmosphere $300 The greenhouse effect occurs because carbon dioxide in the atmosphere absorbs __________ radiation. ANSWER

  22. Atmosphere $400 The increase in the amount of carbon dioxide in the atmosphere is responsible for __________. ANSWER

  23. Potpourri $100 Bones show up in x ray images because they absorb x rays more efficiently than muscle and other tissues do. (True/False) ANSWER

  24. Potpourri $200 __________ are emitted when high speed electrons decelerate as they are smashed into a metal target. ANSWER

  25. Potpourri $300 TV remote controls use __________ radiation. ANSWER

  26. Potpourri $400 A superconductor expels any magnetic field from its interior. This is called __________. ANSWER

  27. Magnetism$100Answer Like poles (repel/attract). Repel Back to Jeopardy

  28. Magnetism$200Answer Magnetic field of the Earth on average 1 gauss or 100 µT SI unit is Tesla = T Back to Jeopardy

  29. Magnetism$300Answer Magnetic field at Phoenix. 1/2 gauss or 50 µT Back to Jeopardy

  30. Magnetism$400Answer What is the magnetic field force equation? F =qvB = ILB Where v & B are perpendicular XXXXXXXX XXXXXXXX XXXXXXXX Back to Jeopardy

  31. Interactions$100Answer What can change in the magnetic flux? The Magnetic Field The Area The angle Back to Jeopardy

  32. Interactions$200Answer What is Faraday's Law? A changing Magnetic Flux will create a changing Electric Field that opposes the change. Back to Jeopardy

  33. Interactions$300Answer What is Ampere-Maxwell's Law? A changing Electric Flux will create a changing Magnetic Field that opposes the change. A current will create a Magnetic Field.. Back to Jeopardy

  34. Interactions$400Answer What is Lenz’s Law? The induced EMF opposes the change that caused it. Back to Jeopardy

  35. EM Waves $100Answer How are EM waves created? They are created by accelerating charges. Back to Jeopardy

  36. EM Waves $200Answer A radio transmitter broadcasts at a frequency of 200,000 Hz. What is the wavelength of the wave?  =c/f = 1,500 m Back to Jeopardy

  37. EM Waves $300Answer What is the wavelength of the peak of the blackbody radiation curve for something at 3,000 K—the temperature of the filament of a light bulb? What type of EM wave is this? ¬max in meters = 0.0029/T in K) 9.67*E10-7 m = 967 nm, infrared Back to Jeopardy

  38. EM Waves $400Answer About how hot does something have to get to glow red hot? T = 0.0029/¬ = 4265K = 3992OC = 7153 OF Red = 680 nm PEAK AT RED Objects cooler than 700K (800OF) appear red because we can not see into the infrared. Back to Jeopardy

  39. EM Spectrum $100Answer The cosmic background radiation has _. has a blackbody spectrum .has its peak emission in the microwave band. corresponds to a blackbody at a temperature of 2.726 Ks. Back to Jeopardy

  40. EM Spectrum $200Answer The main form of radiation that our bodies emit is infrared. Back to Jeopardy

  41. EM Spectrum $300Answer Blackbody radiation is emitted from a small hole in a furnace. Back to Jeopardy

  42. EM Spectrum $400Answer The total radiant power emitted by a blackbody is proportional to its temperature raised to the fourth power. Power = AT4 Back to Jeopardy

  43. Atmosphere $100Answer The ionosphere reflects low (AM) frequency radio waves. Back to Jeopardy

  44. Atmosphere $200Answer The ozone layer absorbs ultraviolet radiation from sunlight. Back to Jeopardy

  45. Atmosphere $300Answer The greenhouse effect occurs because carbon dioxide in the atmosphere absorbs infrared radiation. Back to Jeopardy

  46. Atmosphere $400Answer The increase in the amount of carbon dioxide in the atmosphere is responsible for global warming, the greenhouse effect. Back to Jeopardy

  47. Potpourri $100Answer Bones show up in x ray images because they absorb x rays more efficiently than muscle and other tissues do. (True) Back to Jeopardy

  48. Potpourri $200Answer X-rays are emitted when high speed electrons decelerate as they are smashed into a metal target. Back to Jeopardy

  49. Potpourri $300Answer TV remote controls use infrared radiation. Back to Jeopardy

  50. Potpourri $400Answer A superconductor expels any magnetic field from its interior. This is called the Meissner effect . Back to Jeopardy

More Related