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| Lab Activity Includes Light Source |
Investigate the absorption and radiation of energy on different surfaces. Students fill both cans with water and place a thermometer in each. They then turn on light at 10cm distance and observe how temperatures respond differently in the black can and silver can. In a reverse experiment, the rates of cooling can be determined after the light is turned off. Each kit Includes a 16 oz. black metal and a 16 oz. shiny metal can, two insulating lids, and two thermometers (-20° to 50°C). The single kit also includes one 120 VAC clamp lamp, with reflector and 100 watt light bulb; the class kit includes four lamps.
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