百度试题 结果1 题目(a)How is heat transferred from the sun to vehicles?...[11] 相关知识点: 试题来源: 解析 Radiation 反馈 收藏
Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate ...
All matter is made up of molecules and atoms. These atoms are always in different types of motion (translation, rotational, vibrational). The motion of atoms and molecules creates heat or thermal energy. All matter has this thermal energy. The more motion the atoms or molecules have the more...
but rather radiates away from it and into space. So much energy is released through the reactions that some of it still can reach to the earth, even though the earth is millions of miles away from the sun. The heat energy usually reaches earth in the form of light, and many of the s...
Thermal energy transfers occur in three ways: throughconduction, convection, and radiation. When thermal energy is transferred between neighboring molecules that are in contact with one another, this is called conduction. ... Convection only occurs in fluids, such as liquids and gases. ...
We have seen how energy transferred in the form of heat.Heat can cause major changes insubstances.For example,when water is heated,it changes from a liquid to a gas;ice,which is thes 1 form of water,changes to a liquid when it is heated.Water changes constantly around usas part of ...
Heat exchangers are pieces of equipment used to transfer heat from a hot fluid to a cold fluid. They are essential as they carry out the task of changing the temperature of the more valuable fluid that is used later on in the process. The fluids may be of different phases, which may be...
Early in the spandex development process, it was recognized that this material is highly heat-resistant, which means that notoriously heat-sensitive fabrics like nylon and polyester are improved when combined with spandex fabric. Elastane's stretchiness immediately made it desirable around the world,...
The cooled air is transferred back indoors. The refrigerant plays an essential role in the whole process. It is what cools down the room air and is used as a heat exchange medium. It is compressed and then rapidly expanded, cooling it down. This cooled refrigerant absorbs heat from the ...
The first is that they flow, carrying thermal energy with them. The second characteristic is that warrned gases and liquids rise in their cooler surroundings. Before looking at the transfer of thermal energy itself, we need to understand why warmed fluids rise.Wat-med Fluids RiseOne way to ...