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Energy ((heat, mechanical, light, potential (stored), gravitational,…
Energy
heat
mechanical
light
potential (stored)
gravitational
nuclear
sound
chemical
atomic
kinetic
energy sources
coal
oil
natural gas
solar
wind
water
geothermal
energy cannot be created or destroyed
the first law of thermodynamics (the law of conservation of energy)
transformed: change in the type of energy
transferred: same type but from one situation to another
Units
joules (J)
the strength and vitality required for sustained physical or mental activity.
energy is essential to life