when energy is changed from one form to another, some of the energy is lost to the surroundings as waste…
when energy is changed from one form to another, some of the energy is lost to the surroundings as waste thermal energy. the more steps needed to arrive at the desired energy or the more types of energy that are generated, the more energy is wasted. which object would likely have the least amount of wasted energy? a hairdryer a solar cell a car engine a hydroelectric dam
Answer
Brief Explanations:
A solar cell directly converts sunlight (electromagnetic energy) into electrical energy with relatively few intermediate steps and less energy - loss as waste thermal energy compared to others. A hairdryer converts electrical energy to thermal and kinetic energy with significant heat loss. A car engine has multiple energy - conversion steps from chemical to thermal to mechanical energy with high waste heat. A hydroelectric dam has energy conversion from gravitational potential to kinetic to mechanical to electrical energy with some losses in the process.
Answer:
B. a solar cell