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Unit 7 - Coggle Diagram
Unit 7
Forms of energy
Kinetic
The energy in a moving object
Potential
The energy stored in objects
Mechanical
The sum of potential and kinetic energy
Electrical
The energy produced from various sources, both natural and chemical
Chemical
The energy released in a chemical reaction
Sound
The vibrations which we hear a sound
Light
The fasted form of energy
Heat
The thermal energy that flows from a
warm substance to a cooler one
Heat
Radiation
Heat waves radiate from a hot object
Convection
This is transfert of heat throught gases and liquids
Conduction
Direct contact between materials allow trasfer of heat
Conductors and insulators
Insulators: do not transfer heat very effectively
Efects
Melting: the thermal energy in a solid increases and it becomes a liquid
Evaporation:the thermal energy that it becomes a gas
Expansion: it volume increases too
Light
Reflection and mirrors
when light from an object reflects
Refraction and lenses
Occurs when light changes direction because passes from diferent substance