no there must at least be an initial input to get it started.
gas
Generators transform energy into electrical energy. The output of the generator is the electric power it "makes". The input is whatever is used to create mechanical energy to turn the "prime mover", or the thing that makes the generator spin (be it steam / thermal energy, water, wind, etc.).
Build a generator that uses the kinetic energy in water as it motivational input.
Endothermic reactions require energy input to occur. The energy needed is absorbed from the surroundings, resulting in a decrease in temperature during the reaction.
Yes.
Then the motor will act as generator by principle
Diffusion is a body process that does not require energy from respiration.
Processes such as gravity, diffusion, and osmosis do not require energy input to occur. Additionally, objects at rest do not require energy to maintain their state.
Yes, the process of vaporization does require an input of energy. The energy is required to break the intermolecular forces of a given substance. The intermolecular forces is usually very strong.
Yes, all ovens/cookers require some energy (fuel) input in order to get them to heat up. For example electric hobs require an electrical imput, gas cookers require gas as their fuel (energy) etc... Even solar cookers have a solar energy input.
False. Not all chemical reactions require catalysis. Some reactions occur spontaneously, while others may require an initial input of energy in the form of activation energy. Catalysis is a process that lowers the activation energy required for a reaction to occur, but it is not necessary for all reactions.
Osmosis is the diffusion of water across a membrane, and does not require the input of energy. Active transport requires energy input.