4.2.5 — Electrical energy and electrical power

Core

• 4.2.5.1 — Know that circuits transfer energy from source to components and surroundings
• 4.2.5.2 — Recall and use P = IV
• 4.2.5.3 — Recall and use E = IVt
• 4.2.5.4 — Define the kilowatt-hour and calculate cost of electrical appliances