Skip to content

Course home

1.2.2 Efficiency
x

What efficiency means

What efficiency means

Efficiency is the proportion of the total input energy transfer that is transferred usefully by a device. Some input energy is transferred in unwanted ways, such as heating the surroundings or producing sound.

1.2.2 Efficiency Lesson

  1. GCSE
  2. /Physics
  3. /1.2.2 Efficiency

Step-by-step lessons on AQA GCSE Physics 1.2.2 Efficiency. Each one builds up to exam-style questions. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.