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yes, they do!
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∙ 13y ago
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How does transmit heat work?
Heat is transferred in one of three ways: conduction, convection, and radiation. Conduction: molecules and atoms bang up against adjoining molecules and atoms and the higher energy (hotter) ones transfer some of their energy to the lower energy (colder) ones. Convection: a mass of hot matter is physically moved to another region making the average energy of that region higher (once it is moved, it transfers energy to the rest of the surrounding material mostly via conduction). The movement can either be forced - like by a fan, pump, or mixing blade - or due to hotter material being less dense than colder material and thus rising due to buoyancy effects. Radiation: Hotter material radiates in the electromagnetic spectrum. This radiated energy can be absorbed by any material it encounters, thus raising the average energy of the material, i.e. heating it. Hotter material radiates more; colder material radiates less. Because of the net difference in how much cold and hot materials radiate, there is a net transfer of energy from the hot material to the cold material.
What could happen if energy was added to a piece of solid steel?
The steel would get warmer and possibly become a liquid.
From the graph can you generalize that the higher the layer of the athmosphere (that is closer to the sun) hotter temperature why or why not?
Based on the graph, can you generalize that the higher the layer of the atmosphere (that is closer to the sun), the hotter the temperature? Why or why not
Why does energy flow out of the house?
It is not clear what sort of energy you are talking about. In the case of heat: heat has a natural tendency to flow from hotter objects to colder objects. If your house is hotter than the surroundings, then heat energy will flow out of it.
Is lightning a radiant energy?
Radiant energy is a term that is almost exclusively used for electromagnetic energy. When something is hot, it emits radiant energy. The sun is an obvious example, but all object actually emit radiant energy. The hotter the object, the more energy. Sound does carry energy, but it is not electromagnetic. Objects can emit sound and even "radiate" sound, but the term radiant energy is not normally used for sound.
The Earth loses energy to space only at night?
Of course not. Energy is radiated out all the time. The hotter an object, the more energy will radiate away.
Do hotter objects radiate more total energy per unit area than colder objects?
Yes
Can one object be hotter be hotter than another if they have the same temperature?
No. Hotter means higher temperature.No. Hotter means higher temperature.No. Hotter means higher temperature.No. Hotter means higher temperature.
What types of objects emit of infrared raditation?
Any object emits infrared radiation. The hotter the object, the more infrared is emitted.
Is the lower hotter for Celsius?
No, higher numbers are hotter.
What causes radiation to be released from stars?
They're hotter than the background (about 5 degrees Kelvin) , they must radiate.
How does transmit heat work?
Heat is transferred in one of three ways: conduction, convection, and radiation. Conduction: molecules and atoms bang up against adjoining molecules and atoms and the higher energy (hotter) ones transfer some of their energy to the lower energy (colder) ones. Convection: a mass of hot matter is physically moved to another region making the average energy of that region higher (once it is moved, it transfers energy to the rest of the surrounding material mostly via conduction). The movement can either be forced - like by a fan, pump, or mixing blade - or due to hotter material being less dense than colder material and thus rising due to buoyancy effects. Radiation: Hotter material radiates in the electromagnetic spectrum. This radiated energy can be absorbed by any material it encounters, thus raising the average energy of the material, i.e. heating it. Hotter material radiates more; colder material radiates less. Because of the net difference in how much cold and hot materials radiate, there is a net transfer of energy from the hot material to the cold material.
The energy transferred from a hotter object to a cooler one?
The law says that energy can neither be created nor be destroyed. It can only be transferred from one form to another.... And energy always from higher potential to lower potential... Since hotter object is at high potential and cooler object at lower potential, the heat energy will flow from hotter to cooler object.
On the Celsius scale if it is low does that mean it is hotter?
No, higher numbers are hotter.
Is a red surface or a blue surface hotter?
if you look at the electromagnetic spectrum, the higher the frequency, the more energy and heat given off. Blue has a higher frequency than red, and is hotter. An easier way to remember this is a rainbow, the red side has a lower f that the purple side.
Do all things radiate?
Yes, all objects radiate some heat BUT the hotter the object, the more heat it radiates!! radiation its self is not hot but when it is absorbed by an object its particles in the object move more rapidly thus heating it
Why do power plant designers try to increase the temperature of the steam fed to engines as much as possible?
The hotter the steam the higher the energy in the steam and the more energy to be transformed to mechanical motion.
