The efficiency of appliances Animation Play

The efficiency of appliances Whiteboard exercise Play

The efficiency of electrical devices Student activity Play

The efficiency of electrical devices Whiteboard exercise Play

The efficiency of energy transfer Slideshow Play

The efficiency of simple machines Whiteboard exercise Play

The efficiency of simple machines Student activity Play

The efficiency of the energy conversion process Student activity Play

The efficiency of the energy conversion process Simulation Play

The efficiency of the energy conversion process Whiteboard exercise Play

The heat emitted to the radiator Animation Play

The heating system Student activity Play

The heating system Animation Play

The phenomenon of light Animation Play

The relationship between efficiency and energy Whiteboard exercise Play

The Second Law of Thermodynamics for heat engines Student activity Play

The Second Law of Thermodynamics for heat engines Whiteboard exercise Play

The Second Law of Thermodynamics for heat engines Simulation Play

The temperature of absolute zero Student activity Play

The temperature of absolute zero Simulation Play

Types of electricity meters Slideshow Play

What does efficiency depend on Animation Play

What is light? Student activity Play

Work and power of an electric engine – activity Student activity Play