In physics, temperature is a measure of the average kinetic energy of particles in a substance.
In physics, temperature is typically measured using a thermometer, which contains a substance that expands or contracts in a predictable way with changes in temperature.
While temperature is a measure of the average kinetic energy of particles, heat is the total energy of all the particles in a substance. Temperature is a measure of the intensity of heat, but they are not the same thing in physics.
Yes, in physics, temperature can be negative. This typically occurs in situations where the particles in a substance have very low kinetic energy, such as in extremely cold environments or in certain laboratory experiments.
In physics, temperature plays a crucial role in determining the behavior of matter. As temperature increases, the average kinetic energy of particles also increases, causing them to move and interact more rapidly. This can lead to changes in the physical properties of matter, such as changes in state (e.g. solid to liquid) or changes in volume.