FILTER

• Investigating Infrared Radiation

  • Place a Leslie cube on a heatproof mat and fill with hot water.
  • Use an infrared detector to measure the amount of radiation emitted from each side.
  • Draw a bar chart to compare the results from each surface.

  C

  • Carefully pour 150 ml of hot water into each of the three identical containers (painted with different colours) using a measuring cylinder.
  • Place lids onto the beakers.
  • Put a thermometer into the water in each beaker.
  • Start the stopwatch, and record the temperature of the water in the two containers every 30 s for 10 minutes.

  H

  • Carefully pour 150 ml of water into each of the identical containers (painted with different colours) using a measuring cylinder.
  • Place lids onto the beakers.
  • Put a thermometer into the water in each beaker.
  • Turn on the heater spaced in the middle of the containers
  • Start the stopwatch, and record the temperature of the water in the two containers every 30 s for 10 minutes