1 / 14

Foundations of Physical Science

Foundations of Physical Science. Workshop: Variations in the Heating and Cooling of Earth. Key Question. What causes the seasons?. Two part Investigation. First ,we will measure how variations in DISTANCE effect light intensity

adila
Download Presentation

Foundations of Physical Science

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Foundations of Physical Science Workshop: Variations in the Heating and Cooling of Earth

  2. Key Question • What causes the seasons?

  3. Two part Investigation • First ,we will measure how variations in DISTANCE effect light intensity • Then, we will measure the light intensity at different PLACES on the globe

  4. Light Intensity and Solar Energy • Greater tilt angle spreads the light out over more area • More direct light = more energy/area = greater intensity • Areas with greater intensity will heat more

  5. Developing a hypothesis about the seasons

  6. Setting up your model of Earth’s orbit around the sun • The light represents the sun • Measure the light intensity with the solar cell and multimeter • Compare values

  7. Measuring Light Intensity based on Distance • Four distances • A – 150 cm • B – 147 cm • C – 149 cm • D – 153 cm

  8. Results

  9. Results

  10. How does Earth’s tilt affect the sun’s intensity?

  11. How does Earth’s tilt affect the sun’s intensity?

  12. Findings • What role does axial tilt play in the intensity of light on Earth? • At which position (A-D) and latitude does Earth receive the most light? The least light? • Which factor, distance or axial tilt, plays the most significant role in casing the seasons? • Was your hypothesis supported by your results?

  13. Where is Summer in the Northern Hemisphere? (and why) • From position D to A is summer for the Northern Hemisphere • That is the segment of Earth’s orbit where the Northern Hemisphere is pointing at the sun and getting the most direct, and therefore most intense light

More Related