physics P1 (1)

Nine forms of energy

• storable energy- potential
• -chemical
• -gravitational (GPE)
• -nuclear
• -elastic
• transit/temporary energy
• -kinetic
• -electrical
• dispersed/diffused energy
• -light
• -thermal (always present in energy transfer)
• -sound

Conservation of energy

• the law of conservation of energy tells us that energy cannot be created or destroyed, it can only be transformed from one form to another form
• some will be transformed into the useful form we wanted but some will always be transformed into useless forms and will be wasted

Pendulum

• at the top max GPE and 0 kinetic energy
• and the bottom max kinetic and min GPE

Useful energy

• whenever an energy transfer takes place, some of the input energy will become the useful form that is wanted
• some…