Investigating IR Radiation

• What is the purpose of the Leslie cube in the experiment?

  To measure IR radiation from surfaces
• What is the independent variable in the IR radiation investigation?

  Surface color of the cube
• What is the dependent variable in the IR radiation investigation?

  Amount of IR radiation detected
• What type of surfaces emitted more IR radiation?

  Black surfaces
• What type of surfaces emitted less IR radiation?

  White surfaces
• What control variable relates to the cube's surface?

  Surface of the cube
• What control variable relates to the measurement distance?

  Distance from the cube
• What control variable relates to the temperature in the experiment?

  Temperature of the water
• What are the main components of the Leslie cube experiment?

  • Leslie cube filled with hot water
  • IR detector
  • Different surface colors (black, white)
• What are the findings regarding surface texture and IR radiation detection?

  • More IR radiation from matt surfaces
  • Less IR radiation from shiny surfaces
• What are the key variables in the IR radiation investigation?

  • Independent Variable: Surface color
  • Dependent Variable: Amount of IR radiation detected
  • Control Variables: Surface of cube, distance, temperature