convection - transfer of heat by movement through a substance, conduction - transfer of heat by direct contact, radiation - transfer of heat by electromagnetic waves, Heat always transfers from - warmer to cooler, Heat NEVER transfers from - cooler to warmer, What makes heat rise? - molecules get less dense when heated, pencil sharpener - Starts as electrical and goes to mechanical, battery operated fan - Starts as chemical and goes to electrical, lamp - Starts as electrical and goes to light, flat iron (for hair) - Starts as electrical and goes to thermal,  hammering a nail - Starts as gravitational and goes to mechanical, a flower - Gets energy from light and goes to chemical, You burn your hand when touching a hot pan. - conduction example, This causes wind. - convection example, You get a sunburn from the sun. - radiation example, Law of Conservation of Energy - Energy is not created or destroyed, it transforms., holding a rubber band then letting go - starts as stored mechanical and goes to mechanical, burning wood - Starts as chemical and goes to thermal, gas in a car - Starts as chemical and goes to mechanical, weight and height - potential energy depends on, speed and mass - kinetic energy depends on, potential energy - stored energy, kinetic energy - energy of motion,

Energy Transformations

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