A Closer Look at Light Energy

  • We measure light energy using the solar radiation sensor.
  • The solar radiation at right now is W/m2.
  • The higher the solar radiation, the more light energy there is.
  • Is there a lot of light energy at your school right now? Write your answer in your notebook.

Investigate

How about the last week? Below is a graph of the highest solar radiation reading at each day for the last week. What has happened to the amount of light energy receives from the Sun over the past week? The orange line is all solar radiation.

Which day did get the MOST light energy? Which day did it get the LEAST light energy? Write about it in your notebook.