O.o
hot to cold
If heat can flow between them, then heat flows from the hot one to the cold one. The temperature of the hot object falls, and the temperature of the cold object rises. What drives the transfer of heat is the difference in temperature, so as soon as both objects are at the same temperature, the process stops, and no more heat is transferred.
Heat travels from the hot object to the cold object. For example, the handle of a metal poker left for a long time in a coal fire will eventually become too hot to grasp with bare hands.
If you have the same volume of both then there are in cold water more molecules.
In a closed system, yes. Both objects will be at the same thermal energy level, and neither will be able to release any to the other. In the real world, this is not the case, heat would continue to dissipate until the object reaches the same thermal energy level as the air around it, approximately.
What term describes how hot or cold an object is?
Thermal energy.
Heat is transferred between a hot and a cold object by conduction through direct contact. When the hot object touches the cold object, kinetic energy from the hot object's particles is transferred to the cold object's particles, causing them to vibrate and increase in temperature until thermal equilibrium is reached.
Energy does not naturally transfer from a cold object to a hot object. Heat always flows from a hot object to a cold object in order to reach thermal equilibrium. This is described by the second law of thermodynamics.
Touch it
Heat always travels from a hot object to a cold object. This is based on the second law of thermodynamics, which states that heat naturally flows from regions of higher temperature to regions of lower temperature in an attempt to reach thermal equilibrium.
A cold object is usually more dense than a hot object because colder temperatures cause particles to move less and come closer together, increasing the object's density. Conversely, in a hot object, particles move faster and spread out, decreasing its density.
An object is hot or cold based on its temperature, which is a measure of the average kinetic energy of its particles. When particles move faster, they generate more heat, making the object feel hot. Conversely, when particles move slower, less heat is produced, causing the object to feel cold.
Thermal energy transfers from hot objects to cold objects through a process called conduction. This occurs when the particles in the hot object collide with the particles in the cold object, transferring energy and causing the cold object to heat up.
both
No, the energy that flows from a hot object to a cold object is called heat energy. Kinetic energy is the energy of motion of an object.
A hot object must be directly touching a cold object for heat to be transferred by conduction. Conduction is the process of heat transfer through direct contact between particles of a substance. Heat flows from the hotter object to the colder object until thermal equilibrium is reached.