What does spontaneous mean in physics?

spontaneous means that the event is not caused externally. For example, spontaneous combustion is not caused by someone setting fire to a piece of wood; it is an internal reaction of the firewood, independent of any human will. The firewood itself causes the fire; it is the spontaneous occurrence of the firewood that causes the reaction.

What does spontaneous mean in physics law?

spontaneous is often used to describe an event that does not obey the known natural laws of the universe. Examples of spontaneous events include the development of life or the creation of the Universe. Sometimes, spontaneous refers to an event that occurs without any apparent cause.

What does spontaneous mean in physics definition?

A spontaneous process is a physical reaction which happens without any outside influence or cause. Spontaneous processes can only occur at the quantum level, which is the smallest level of matter. If an object is observed to be in a particular state, it cannot be observed to change unless some outside agent acts on it. In spontaneous decay, a particle that was previously in an excited state will automatically return to its ground state. It cannot be observed to do so unless it emits a photon.

What does spontaneous mean in science?

Spontaneous refers to a physical process that is not caused by an outside agent. Spontaneous processes are ones that take place without any input of energy from the outside world. An example of a spontaneous process is the expansion of gas that results from the pressure difference between different areas within a gas. There is no need for any outside energy to cause expansion.

What does spontaneous mean in physics theory?

Spontaneous means something is happening without an external cause. A spontaneous reaction is an example of spontaneous behavior. An example of spontaneous behavior in a physical system is the sudden growth of inflation. Inflation occurs when the energy of the vacuum of the universe becomes positive. This is a spontaneous behavior of the physical system, because it is not caused by any outside force. The expansion of the universe is not caused by any outside force either.