Electrical conduction is the movement of electrically charged particles through a transmission medium. The movement can form an electric current in response to an electric field. The underlying ...

Energy close energyEnergy can be stored and transferred. Energy is a conserved quantity. can transfer by heating from a hotter region to a cooler region. The temperature of the hotter region decreases ...

When room-temperature washers are placed in hot water, the temperature of the washers increases and the temperature of the water decreases. Energy from the water is transferred to the washers. When ...