What part of speech is “energy”

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energy is a noun that means the capacity to do work. It is the amount of effort or power used, like fuel for a rocket ship or the electricity powering a city. In physics, energy is defined as the ability to do work, and is the fundamental component of all physical systems. Energy can be found in many different forms, such as chemical, electrical, nuclear, thermal, gravitational, mechanical, and sound.

rules for using energy as a noun involve determining if the subject is inanimate or animate, and choosing the appropriate form of energy.

1. Solar energy can be used to power the entire city.

2. Every form of energy is precious and should be conserved.

3. The energy in the room was electric as the audience cheered.

it is important to note the context of the sentence and determine the appropriate form of energy. For example, 'The stage was charged with energy' would not refer to electrical energy.

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