2.4.2 Energy Transfer

• What is the process called when electrical appliances convert electrical energy into other forms of energy?

  Energy transfer
• An electric heater converts electrical energy into heat
• A television converts electrical energy into light, sound, and heat.
• What are the common forms of energy into which electrical energy is converted in appliances?

  Heat, light, sound, kinetic
• Match the circuit type with its energy transfer characteristics:

  Series circuit ↔️ Higher resistance lowers energy transfer

  Parallel circuit ↔️ Higher current increases energy transfer
• Which form of energy does a light bulb primarily produce from electrical energy?

  Light and heat
• Order the factors influencing energy transfer in electrical circuits:

  1️⃣ Voltage provides potential difference

  2️⃣ Current flows through the circuit

  3️⃣ Resistance affects the rate of energy transfer
• An electric fan converts electrical energy into kinetic and heat energy.
• Energy transfer efficiency is the ratio of useful energy output to total electrical energy input
• Why is an electric heater considered highly efficient in energy transfer?

  Most energy becomes heat
• LED light bulbs are more energy-efficient than incandescent bulbs.
• What is the primary goal of energy conservation in electrical appliances?

  Reduce energy consumption