How Radiation Affects Temp

• What types of objects absorb and emit electromagnetic radiation?

  Any object, like a cup of tea
• What happens to an object when it absorbs radiation?

  It gets warmer due to energy gain
• What occurs when an object emits radiation?

  It cools down due to energy loss
• How does the balance of absorbing and emitting radiation affect temperature?

  It determines whether the object warms or cools
• What happens to a hotter object like a cup of tea in terms of radiation?

  It emits more radiation than it absorbs
• What happens to a cooler object like an ice cube regarding radiation?

  It absorbs more radiation than it emits
• What occurs when an object absorbs and emits the same amount of energy?

  It stays at the same temperature
• What is the term used to describe the power of radiation per unit area?

  Intensity
• What does intensity measure in terms of radiation?

  Energy transferred to a given area over time
• What is plotted on the x-axis of the emitted radiation graph?

  Wavelength of the radiation emitted
• What is plotted on the y-axis of the emitted radiation graph?

  Intensity of the emitted radiation
• What happens to the emitted radiation curve for a paper bag at room temperature?

  It mostly emits in the infrared range
• How does the emitted radiation curve change for a hotter object like burning coal?

  It shifts up and to the left
• What happens to the emitted radiation curve for an even hotter object like the sun?

  It shifts up and left even more
• What is the relationship between temperature and emitted radiation intensity?

  Higher temperature increases emitted intensity
• How does the color of a Bunsen burner flame change with temperature?

  It changes from red to blue as it heats
• Why can't we see the emitted radiation from room temperature objects?

  It's all in the infrared range
• How does the Earth interact with electromagnetic radiation from the sun?

  It absorbs and emits infrared radiation
• What happens to the Earth's temperature during the day?

  More energy is absorbed than emitted
• What occurs to the Earth's temperature at night?

  Less energy is absorbed than emitted
• Why does the overall temperature of the Earth stay constant?

  Some parts are always in the sun
• What are the types of electromagnetic radiation we need to focus on?

  • Ultraviolet radiation
  • Visible light
  • Infrared radiation
• What are the key points about the relationship between temperature and emitted radiation?

  • Higher temperature increases intensity of all wavelengths
  • Short wavelengths increase more than long wavelengths
  • Color changes with temperature (e.g., Bunsen burner)
• How does the Earth's atmosphere affect radiation absorption and emission?

  • Reflects, absorbs, and emits radiation
  • Influences local temperature variations
  • Affects overall energy balance of the Earth