Question

Energy Forms and Examples (10 pts) List and briefly explain the form/type of energy (given in class) with a practical example, and state its importance. Among them, which is the most preferred (clean, convenient) form of energy, and which are the least practically useful energies?

Answer 1

There are basically two types of energy resources .

1. Non-renewable energy sources:- Non-renewable energy comes from sources that will eventually run out, such as oil and coal.
2. enewable energy resources :- There are many forms of renewable energy . Most of these renewable energies depend in one way or another on sunlight. Wind and hydroelectric power are the direct result of differential heating of the Earth's surface which leads to air moving about (wind) and precipitation forming as the air is lifted. Solar energy is the direct conversion of sunlight using panels or collectors. Biomass energy is stored sunlight contained in plants. Other renewable energies that do not depend on sunlight are geothermal energy, which is a result of radioactive decay in the crust combined with the original heat of accreting the Earth, and tidal energy, which is a conversion of gravitational energy.

Most clean/green form of energy is utilization of sunlight and convert it idirectly nto electricity . And today, non-renewable energy sources seems to be least practical useful energy sources.