How radiation affects temperature

• What type of radiation do objects absorb and emit?

  Electromagnetic radiation
• What happens to an object when it absorbs radiation?

  It gets warmer
• What occurs when an object emits radiation?

  It cools down
• How does the balance of radiation affect an object's temperature?

  It determines if 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 occurs with a cooler object like an ice cube regarding radiation?

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

  It stays at the same temperature
• What does the term intensity refer to in radiation?

  Power of radiation per unit area
• How is a graph of emitted radiation structured?

  X-axis is wavelength, Y-axis is intensity
• What types of radiation are primarily considered in this topic?

  Ultraviolet, visible light, and infrared
• What would the emission curve of a paper bag at room temperature look like?

  It emits mostly in the infrared range
• How does the emission curve of burning coal differ from that of a paper bag?

  It emits more radiation and shorter wavelengths
• What happens to the intensity of emitted wavelengths as temperature increases?

  Intensity of all wavelengths increases
• Why do bunsen burner flames change color as they get hotter?

  Shorter wavelengths of light are emitted
• What type of radiation do objects at room temperature primarily emit?

  Infrared radiation
• 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 remain constant?

  Some parts are always in sunlight
• What are the key concepts related to radiation absorption and emission?

  • Objects absorb and emit electromagnetic radiation
  • Absorbing radiation warms objects
  • Emitting radiation cools objects
  • Balance affects temperature
  • Intensity measures power per area
  • Emission curves depend on temperature
• What are the effects of temperature on emitted radiation types?

  • Higher temperature = higher intensity of all wavelengths
  • Shorter wavelengths increase more than longer wavelengths
  • Color changes with temperature (e.g., bunsen burner)
• How does the Earth's atmosphere affect radiation?

  • Reflects, absorbs, and emits radiation
  • Influences local temperature variations
  • Balances energy absorption and emission