Work and energy lesson 1

• Work is done when a force moves an object at a distance
• The formula for work is W=Fd
• The unit for work is the joule, where 1J = 1Nm
• Various forms of energy include: light, thermal, sound, nuclear, electrical, magnetic, mechanical, potential, chemical, gravitational, elastic, kinetic, etc.
• Energy is an object's capacity to do work
• The unit for energy is the joule
• Conservation of energy
• The principle of conservation of energy states that energy cannot be created nor destroyed but only changed from one form to another
• Thermal energy is always a by-product of every energy transformation