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Thermal energy is the kinetic energy contained in an object or substance due to the movement of its atoms and/or molecules.
average kinetic energy of the particles in an object or substance
The substance’s particles would stop moving.
Its atoms gain kinetic energy.
She learns that temperature is the measure of a type of kinetic energy and relates that to what she already knows about kinetic energy.
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To explain the concept of thermal energy, let's start with understanding what kinetic energy is. Kinetic energy is the energy possessed by an object or substance due to its motion. Thermal energy, on the other hand, is the specific type of kinetic energy associated with the movement of atoms and/or molecules in an object or substance.
When the atoms or molecules in a substance are in motion, they possess kinetic energy. This motion can be in the form of vibrations, rotations, or translations. The faster the particles move, the higher their kinetic energy. Therefore, the average kinetic energy of the particles in an object or substance determines its thermal energy.
If the substance's particles were to stop moving, there would be no kinetic energy associated with them. Consequently, the substance would have no thermal energy.
When the atoms of a substance gain kinetic energy, it means they are absorbing energy and becoming more active in their movement. This increase in kinetic energy often leads to an increase in the substance's temperature.
Temperature is a measure of the average kinetic energy of the particles in a substance. It represents how fast the particles are moving on average. Thus, when someone learns that temperature is a measure of a type of kinetic energy, they can relate it to what they already know about kinetic energy in terms of motion and the level of activity of particles.