This introduction covers The Ski Lift Model within Potential Difference for GCSE Physics. Revise Potential Difference in Electricity for GCSE Physics with 14 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 1 of 14 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 14
Practice
14 questions
Recall
30 flashcards
⚡ The Ski Lift Model
Think of a battery as a ski lift. It picks up skiers (charges) at the bottom and lifts them to the top, giving them gravitational potential energy. A 12 V battery gives 12 joules of energy to every coulomb of charge that passes through it. Components are like the ski slopes — they take energy from the charges as they pass through. A lamp with 12 V across it takes 12 joules from every coulomb. Voltage is just energy per charge — the "height" of the electrical "hill"!