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When the ground gets warm it emits an invisible type of light called infrared light. This light can travel into the atmosphere and heat the air that it encounters.?
Some parts of the air - the so-called green-house gasses. Not the more common parts of the air.
When you dip your hand in cold water you feel it cold. Can you name the mode of heat transfer and its direction?
This type of heat transfer is called conduction. The transfer is from the warm hand to cool water.
Can you explain why you feel warm when you are standing away from a campfire?
A fire burns fuel to produce heat and gasses. Some of the heat comes off as visible light and some warms the air in and around the fire and this rises with the smoke.However, allot of the heat comes off as infra red radiation - a form of light that you can not see with your eyes, but that you can feel with your skin (as the warmth from the fire).Your skin is always trading heat with its surroundings, your body is always losing heat at a moderate rate to the air touching it. When more heat comes in than goes out, the skin feels warm. So the side of you that faces a fire will feel hot because it is getting more heat than it is losing (because it is absorbing the infra red radiation), while your back surface is shaded from the fire's energy (by your front) and this will be losing more heat than it is receiving and will therefore feel cold.
Why are the upper layers of water in a deep well are cool but those in a pond are warm?
Water is warmed by sunlight. The pond gets more sunlight and is shallower, so that there is less water to heat.
How does a campfire warm you up?
The combustion reaction of burning organic material is exergonic, meaning it releases energy. In this case it is in the form of heat energy. The energy is stored in the wood by the process of photosynthesis. This heat energy causes the air around the campfire to gain energy in its system. You, in turn, feel less cold because the difference between your body temperature and the air around you is decreased due to the heat from the fire. Thus, you are losing less heat to the outside environment.---Heat transfer may take three forms: radiation, conduction, and convection. Conduction requires contact, so you can rule that one out unless you sit on the camp fire. Convection is the movement of heated air, but unless the camp fire is inside your house, most of the heated air disappears quickly into the sky. The main form of heat transfer occurring between the camp fire and you is radiation, I would say. So, the short answer is: "Through radiation."
What makes a campfire an example of Radiation?
A campfire is an example of radiation because heat is being emitted from the fire. The heat is what is being radiated, and the heat is a characteristic of the campfire.
What happens to liquid water when you add heat?
When you add heat to liquid water it gets warm. If it gets warm enough it will boil and evaporate.
What happens when you heat a doghouse?
The dog gets warm. :)
Why do you need a furnace to keep your house warm?
You need a furnace because the heat it generates warms your house. Without it, it would be like camping without a campfire!
Where do hurricanes and typhoons get their heat from and where do they send the heat?
The heat of a typhoon or hurricane comes from water vapor, which in turn gets its heat from warm ocean water. The heat then either gets radiated into space or transferred to higher latitudes.
When the ground gets warm it emits an invisible type of light called infrared light. This light can travel into the atmosphere and heat the air that it encounters?
Yes, that is correct.
What type of heat transfer would you use to warm an object?
Any type.
What is a type of wave that is emitted by all warm bodies?
heat
What area from which a stream gets its warm is its?
The area a stream gets heat from is generally the part moving slowest allowing it to be heated by the sun.
What is the relationship between warm and scolding?
they both mean a type of heat flow, even though scolding is a a large heat flow, and warm is a low heat flow, dosen't mean they are nothing alike.
How is the law of conservation of energy obeyed when a tennis ball gets warm when bouncing?
A moving tennis ball (or a moving object of any type) has kinetic energy, the enery of motion. Some of this energy gets converted into heat, when the ball bounces, and the ball therefore gets warm. The ball is moving less, but the kinetic energy has not disappeared, it has just changed into another form of energy.
When the ground gets warm it emits an invisible light called infrared light. This light can travel into the atmosphere and heat the air that encounters.What type of heat transferr is described above?
Radiation. However, the heat transfer here isn't exclusively radiation; the warm ground tends to warm the air next to the ground (conduction) and the warm air rises and mixes with the cooler air above (convection). So all three modes of heat transfer are involved. Here's an example of strictly radiative heat transfer. On a cold cloudy night, the warmer ground radiates heat to the cooler clouds, but the temperature difference is only a few tens of degrees, so not much heat is transferred. On a cold CLEAR night, the heat from the warm ground is radiated to deep space, with a temperature close to absolute zero, a difference of 400+ degrees. So it gets a lot colder on clear night than it does on a cloudy night!
