What is the need for Energy?

Question

Why do we require energy?

Answer 1

Energy is often defined as the ability to do work.

Answer 2

to do kamehamehas and final flashes

Answer 3

Energy is fundamental to the quality of our lives. Nowadays, we are totally dependent on an abundant and uninterrupted supply of energy for living and working. It is a key ingredient in all sectors of modern economies.

We know that energy demand will increase significantly in the future. How then will we satisfy this huge energy requirement in an environmentally friendly way?

We use it constantly at home, at work and for leisure. Energy maintains our standard of living and economy. Nowadays we take it for granted that energy is available whenever we want it.

But once we only had candles... they were used to light our homes before the industrial revolution. Wood or coal fires provided heat for cooking food and for keeping us warm. Walking was then the only form of transport for most people.

Since then, a vast array of energy devices and systems has been developed. These transform energy from sources provided by nature (coal, oil, gas, wind, sun and nuclear fuels) into other forms that we can use. As the population grows so do our energy demands.

We use energy daily to provide heat and electricity:

- In our homes for lighting, domestic appliances, televisions, computers, etc.;

- In factories to power the manufacture of the products we use everyday; and

- In cars, trucks, ships and aeroplanes to transport people and goods.

By the year 2050, world-wide energy demand is projected by the World Energy Council to be at least double its present level.

At the same time, we can expect further economic growth and rising living standards.

The most reliable predictions indicate that by 2050, the world's population will have nearly doubled from its present level. It will rise from around 6 billion to about 10 billion people. Most of this growth, and much of the increase in energy consumption, will occur in developing countries.

Future directions:

Energy supply must be sustainable and diverse. And energy needs to be used more efficiently.

Protecting the environment:

Damage to the environment is reason enough to promote alternative environmentally friendly energy sources.

External energy supplies:

If present trends continue, increasing demand will cause rising imports of energy.

An increased dependence on energy imports means that the cost and supply of a vital resource for our economy slips further and further out of our control. Moreover, we may become more exposed to the results of political instability in the regions where fossil fuels are produced.

Consequences of energy dependence:

The consequences are likely to be higher energy prices.

There is also likely to be more uncertainty about supplies and greater environmental risk as less easily accessible reserves of fossil fuels are exploited. Future increases in energy demand will exert even greater pressure on our finite reserves.

Answer 4

To fulfil the daily requirements of human needs. If your talking about the energy from food that makes our body work well thats obvious so we can stay alive and do things to keep our selves protected and well lived.

If your talking about energy like lighting and heating and c**p well we dont really need it, we do kind of, we need it to live in certain environments (like we need heaters in extremely cold environment so we dont freeze ourselves to death) and it helps us see at nite and rar rar, but a lot of it is just to meet the demands that makes our life that much easier.. like electricity to power video games, or music or watev er, a comfort thing.

We also need energy like the sun to keep the earth warm so it is susainable for us to live in and c**p