In physics, energy is required for work to be performed.
If you have a machine that you want to just sit somewhere, it doesn't need any energy.
If you want a machine to actually do something, then it needs energy.
In space, a satellite can travel millions of miles without any added energy (just the energy required to set it on its path). In a sense, a form of perpetual motion.
On earth, true perpetual motion doesn't exist. If one doesn't want a machine to stop due to friction and other forces, then one must add energy.
Energy is necessary for living beings because without energy we would not have the thing we have now
There WILL be energy transformations, whether we need it or not. Living beings, however, depend on energy transformation to live. We get energy from our food, which we "use up" and eventually convert to heat energy.
This is a difficult subject. A brief - and very informal - definition is that energy is "the ability to do work". Machines, humans, and other living beings, need energy to move, or to get things done. It is important to note that energy exists in many different forms (heat, movement, sound, light, chemical energy, and others), and that it can be converted from one form to another.
Living things need energy to do stuff like grow, breathe, walk around, dress themselves, sleep, procreate and do their homework. They get it by eating or by soaking up soil and sunlight. If they don't, they soon cease to be living things, and they no longer need to worry about energy.
The energy that the sun gives off are heat and light. Living things on Earth need these forms of energy.
All living creatures need energy to survive. Energy is anything that makes something move or change, not only carbohydrates in food like some people think. For instance, your heart needs energy to beat, and your brain needs energy to think. Animals, and even tiny organisms, need some sort of energy to survive.
living things need energy because they cannot live longer without energy
because food gives us energy
Carbohydrates provide energy, which all living beings need.
No. Using energy is indeed one of the characteristics which living beings are expected to have. Moving, on the other hand, only applies to SOME living beings - plants (and some animals, such as sponges) usually don't move, but are still considered living beings.
There WILL be energy transformations, whether we need it or not. Living beings, however, depend on energy transformation to live. We get energy from our food, which we "use up" and eventually convert to heat energy.
This is a difficult subject. A brief - and very informal - definition is that energy is "the ability to do work". Machines, humans, and other living beings, need energy to move, or to get things done. It is important to note that energy exists in many different forms (heat, movement, sound, light, chemical energy, and others), and that it can be converted from one form to another.
All the living beings would die... All the humans and animals would die by freezing... Because we need heat.
Any animal (Including human beings). Plants live and need a source of energy but they dont "eat." They use photosynthesis.
Living beings are, in a way, similar to engines, and they need fuel - for example, to move around, to grow, etc. Without energy, no change is possible. A lifeless statue doesn't need energy; anything that moves, grows, or undergoes any other type of change, does.
Second Law of Thermodynamics. Roughly speaking, to get ANYTHING done, you need to have available energy. All machines, but also all life forms, need energy.The Sun is the ONLY significant source of freely available energy here on Earth. Most other forms of energy (including wind, potential energy from falling water, etc.) derive from solar energy. The few other forms of energy are either not significant, or are difficult to access for living beings.
yes all living things need energy
All living beings need energy to maintain there lives. Respiration is chemically oxidation of big molecules to release energy. This burning of fuel in a cell (or organism) is called respiration.