Work, Energy, & Power Flashcards
What is the definition of work, energy, and power?
Work: Work is done when a force acts on an object and causes displacement in the direction of the force.
Energy: Energy is the capacity to do work.
Power: Power is the rate at which work is done or energy is transferred.
What are the forms of energy?
The forms of energy include kinetic, potential, thermal, chemical, electrical, nuclear, and radiant energy.
How do you interpret the area under the force-distance curve?
The area under the force-distance curve represents the work done by the force.What is the principle of conservation of energy?
How do you interpret the area under the force-distance curve?
The area under the force-distance curve represents the work done by the force.
What are the sources of energy?
Sources of energy include fossil fuels (coal, crude oil, natural gas), renewable sources (solar, wind, hydro, geothermal), and nuclear energy.
What is the difference between renewable and non-renewable energy?
Renewable energy: Energy sources that can be replenished naturally, such as solar, wind, and hydroelectric energy.
Non-renewable energy: Energy sources that cannot be easily replenished, such as coal, crude oil, and natural gas.
How is energy important for the development of society?
Energy is crucial for industrial processes, transportation, communication, and overall economic development.
What is nuclear energy?
Nuclear energy is energy released during nuclear fission or fusion, especially when used to generate electricity.
What is the principle of conservation of energy?
The principle states that energy cannot be created or destroyed; it can only be transformed from one form to another, with the total energy in a closed system remaining constant.
What are the environmental impacts of energy use?
Energy use can lead to global warming, greenhouse gas emissions, pollution, and ecological damage, such as oil spills.
