Heat From Light Bulbs - the higher the watts, the hotter the bulb?

What do you need?

1. A goose-neck style lamp.
2. An extension cord.
3. Different wattage of incandescent light bulbs - 25 watt, 40 watt, 60 watt, 75 watt, 100 watt, 150 watt.
4. Compact Fluorescent light bulbs - 7 watt, 23 watt - They are expensive; so shop around for ones that don't cost so much.
5. Thermometer.
6. A ruler or yard stick to measure distance from the thermometer to the light bulb.
7. A white towel.
8. A watch or stop watch to measure the time.
9. A piece of paper and pencil to record your observations.

Go to the above webpage for full details or Back to Heat and Thermodynamics