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Do objects gain energy when they are hot?
No, objects that gain energy become hotter.
Does thermal energy flow from cooler to hotter objects?
No, thermal energy flows from hotter objects to cooler objects as heat always moves from areas of higher temperature to lower temperature, seeking equilibrium.
Is a type of thermal energy transfer that moves heat through direct contact from hotter objects to cooler objects?
Conduction is the thermal energy transfer that occurs through direct contact from hotter objects to cooler objects. This process involves the vibration of particles in the material transferring heat energy.
Describe how energy flows between hotter and cooler objects?
from radiation and convection
Does cold objects have heat energy?
Yes, even cold objects have heat energy. Heat energy is a form of energy that is present in all objects, with colder objects having less heat energy compared to hotter objects. This energy is related to the temperature of an object, with colder objects having lower temperatures and less heat energy.
Do hotter objects radiate more total energy per unit area than colder objects?
Yes, hotter objects radiate more total energy per unit area than colder objects. This is described by Stefan-Boltzmann's law, which states that the total energy emitted by a blackbody is proportional to the fourth power of its temperature.
How can thermal energy can flow from colder objects to hotter objects?
Thermal energy can flow from colder objects to hotter objects through a process known as heat transfer. This can occur by conduction, convection, or radiation. In general, heat always flows from areas of higher temperature to areas of lower temperature to reach thermal equilibrium.
Hotter objects emit what total energy per unit area than colder object do?
Hotter objects emit more total energy per unit area than colder objects. This is described by the Stefan-Boltzmann law, which states that the total amount of energy emitted by a blackbody is proportional to the fourth power of its temperature.
Can one object be hotter be hotter than another if they have the same temperature?
No, two objects with the same temperature will have the same level of thermal energy, so they cannot differ in temperature. Temperature is a measure of average kinetic energy of particles in a substance, so if temperatures are equal, the objects are equally hot.
Why is thermal energy hard to store?
Heat has a tendency to flow from hotter objects to colder objects. This can be reduced with thermal insulation, but not entirely stopped.
What will happen when you put objects of different temperatures next to one another?
Heat energy will be transferred from the hotter objects to cooler objects until they are all at the same temperature.
Heat is defined as?
Heat is a form of energy that is transferred between objects due to a temperature difference. It flows from hotter to colder objects until thermal equilibrium is reached.
