- Korea (South)
- member since January 30, 2008
dianlyn c’s last login was Monday, June 16, 2008.
February 1, 2008
For my experiment I will test how different colors affect absorption of light.
This will be based on jars filled with water but covered in colored paper, will being exposed to incandescent light. This will determine which colors absorb light, which don’t, and which reflect light. Fix this laterrrrr.
How does the color of an object affect how much light it absorbs when being exposed to incandescent light?
I predict that the darker colors will have the most heat absorbed, and the lighter colored won’t. I think this is so because dark colors absorb light and light colors reflect light.
• 6-8 sheets of colored construction paper (different colors varying from darkest to lightest)
• 6-8 identical glass jars, 1 quart size with lids
• Modeling clay
• Heat lamp
• Timer or clock
• Drill and bit for making holes in jar lids
1. Drill a hole slightly larger than the diameter of your thermometer in the lid of one jar.
2. Wrap each jar with a different color of construction paper.
3. Fill each jar with water
a. keep construction paper dry
b. Have ALL jars at room temperature. Do this by filling them up and leaving them in a room over night the day BEFORE the experiment.
4. Cover jar with lid to be tested.
5. Put thermometer in through the hole in the lid to make sure the bulb is all the way in.