An electric quadcopter drone uses a battery to power its motors, allowing it to climb vertically at a constant speed. Some energy is wasted due to air resistance (drag) opposing the motion of the drone.
Suggest one other reason why some energy is wasted (dissipated to the surroundings) in this system.
82 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.