amplitude
amplifier
The definition to energy input is something in a system or expended in its operation to achieve output or a result.
sometimes friction
Heat energy is the result of particles vibrating, when you heat something up it causes the particles in it to vibrate more, which we experience as heat. Its all to do with the amount of internal energy something has. Do you need more detail?
agent
An attrahent is an agent which attracts, something which draws or brings something closer to something or someone else.
A social aggregate refers to a collection of individuals who are in the same place at the same time, but do not necessarily interact or share a common identity or purpose. It can be a temporary gathering of people in a public space, such as a crowd at a concert or commuters on a train.
reaction
It brings to an end, the termination, the outcome or result of an act, it is the final decision,
It brings additional result with muscular endurance.
It means that when you need something, you will get it.
list
Giving information that brings something up to date.
It means the result of something occurring.
Someone or something that brings bad luck.Obvs.
Someone or something that brings to a close some activity or event.