Identify the unit of measurement of energy.

Joule

The correct answer is option 2. Joule.

Energy is a fundamental concept in physics, representing the capacity of a system to do work or cause a change. Here's an explanation of energy and its measurement using the unit of joul.

Energy is a scalar quantity that comes in various forms and can be transferred from one object to another or converted from one form to another.

It is often described as the ability or capacity to do work, where work is defined as the application of force over a distance. When work is done on an object, energy is transferred to that object.

There are many different forms of energy, including:

Mechanical Energy: Associated with the motion or position of objects, such as kinetic energy (energy of motion) and potential energy (energy due to position or configuration).

Thermal Energy: Associated with the temperature of a substance and the random motion of its particles.

Chemical Energy: Stored in the bonds of chemical compounds and released during chemical reactions.

Electrical Energy: Associated with the movement of electric charges through a conductor.

Nuclear Energy: Released during nuclear reactions, such as nuclear fission and fusion.

Light (Radiant) Energy: Associated with electromagnetic radiation, including visible light, ultraviolet light, and infrared radiation.

The joule (J) is the standard unit of measurement for energy in the International System of Units (SI).

One joule is defined as the amount of work done or energy transferred when a force of one newton acts over a distance of one meter in the direction of the force:

\[ \text{1 Joule (J)} = \text{1 Newton (N)} \times \text{1 Meter (m)} \]

Alternatively, the joule can be defined in terms of other base SI units:

\[ 1 \text{ J} = 1 \text{ kg} \times \left( \frac{ \text{m}}{\text{s}^2} \right) \times 1 \text{ m} \]

\[ 1 \text{ J} = 1 \text{ N} \times 1 \text{ m} \]

The joule is a versatile unit used to quantify energy in various forms and applications, from mechanical work to thermal energy, electrical energy, and more.

The joule provides a consistent and standardized way to measure and compare energy across different systems and disciplines.

It is widely used in scientific, engineering, and everyday contexts to describe energy transfers, conversions, and consumption in a wide range of phenomena and technologies.

In summary, energy is a fundamental concept in physics representing the capacity to do work or cause a change, and the joule is the standard unit of measurement used to quantify energy in various forms and applications.