0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How is the new light bulbs energy renewed?
The energy put into the bulb is converted to heat and light. Low-energy bulbs just use less electrical energy to keep them bright.
How much energy do you save with 10 light bulbs off?
That depends on the power used by each light bulb. Look at the specifications for a specific light bulb, then multiply the power by 10. Note that energy = power x time; that is to say, the energy spent by a light bulb depends on its power, but also on how long you keep it on. Specifically, watts = joules x seconds.
What are the main uses for thermal energy?
Thermal energy is used to keep us warm. An example of a use of thermal energy is a radiator. This is because a radiator is used to warm a room and keep people warm.
How long did the first light bulb stay lit?
The "The Centennial Light" 4 watt light bulb which was first lit in 1901 and is still in use today at a fire station in Livermore, California.
What forms of energy presents when a candle burns?
The forms of energy is light energy because candles produce light and thermal energy. If you would like to keep the candle to burn stuff blow on it. When your done just put water on ti to take the fire out.
What forms of energy are present when a candle burns?
The forms of energy is light energy because candles produce light and thermal energy. If you would like to keep the candle to burn stuff blow on it. When your done just put water on ti to take the fire out.
How much energy is wasted if the light bulb is 5 percent efficient?
It is not quite as straight forward as saying 95%. All energy going through the light bulb is being used in one form or another. If the room needs heat, the bulb is assisting in this heating. We use light bulbs like this for incubators or to keep pump rooms from freezing in the winter (two examples). In both of those cases, the light is really the only wasted portion of the energy consumed. If we are discussing only the light portion of the bulb. 95% of the energy goes to non visible light consumption.
In Which way does thermal energy normally flow?
from higher temperature to lower temperature so lower.
How do heat engines use thermal energy and how do refrigerators keep things cold?
Heat engines transform thermal energy to mechanical energy. A refrigerator is a device that transfers thermal energy from inside the refrigerator to the room outside.
What energy transformation takes place when a animal eats food so they can keep warm?
Radiant energy to thermal energy
What is thermal insulate?
Thermal insulation is the insulation that blocks heat or cold. Actaully thermal insulation like your jacket or sweater, it helps you keep energy in winter
Does the life of a light bulb depend on its wattage?
Yes, Of Course The lifetime depends on the wattage. The wattage is the amount of Power the light bulb uses, and the life time depends on the power. Thank you
