Physics

Renewable energy sources are those that can be replenished naturally over short timescales and include solar, wind, hydro, and geothermal energy.

The relationship between energy and mass is famously explained by Einstein’s theory of relativity, specifically through the equation: E = mc² Where: E is the energy, m is the mass of the object, c is the speed of light in a vacuum (approx 3 × 10⁸ m/s).

While kinetic and potential are the primary categories, energy can manifest in various specific forms like nuclear, magnetic, or ionization energy, each associated with particular physical phenomena.

Energy is the capacity to do work, while power is the rate at which work is done or energy is transferred.

Energy transfer occurs when work is done on an object, transferring energy from one form to another (e.g., from potential to kinetic energy).

Mechanical energy is the sum of an object's kinetic and potential energy.

No, according to the law of conservation of energy, energy cannot be created nor destroyed; it can only be converted from one form to another.

Kinetic energy is the energy an object has due to its motion, while potential energy is the stored energy due to an object’s position or configuration.

The SI unit of energy is the $\boldsymbol{Joule (J)}$.