SOLAR SYSTEM

Detailed explanation-1: -Examples of sources of heat energy are the Sun, electrical appliances, burning wood, eating food and friction. Some forms of energy can be changed to produce heat energy. Example: 1. Sunlight is changed to heat energy.

Detailed explanation-2: -In the end, if you’re wondering where the heat in your home comes from, it’s almost certainly one of the three main sources: combustion, electric resistance, or the outdoor air, ground, or water.

Detailed explanation-3: -Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

Detailed explanation-4: -Typical examples of heat sources for heat networks are: gas boilers, Combined Heat and Power (CHP) plants, wasted heat (from industrial processes, wastewater treatment etc.) and biomass fuelled boilers.

Detailed explanation-5: -In this activity, students sort 16 different sources of heat into 5 different categories: heat from sun, chemical reaction, electricity, friction, or heat from inside the earth.