Types of Energy.

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Presentation transcript:

Types of Energy

Kinetic Energy Energy stored in a moving object

Light Energy The energy from luminous objects that reflects off surfaces into our eyes enabling us to see.

Heat Energy Heat energy from the Sun keeps us warm. Heat energy is a result of most energy changes.

Sound Energy Sound waves carry energy from one place to another through the vibrations of atoms and molecules.

Potential Energy magnetic strain (or elastic) chemical nuclear There are several types of ‘potential energy’, that are stored until they are converted into one of the previous four types. magnetic strain (or elastic) chemical nuclear

Gravitational Potential Energy The energy stored in an object because it has been lifted up to a height. The object will have more energy if it is more massive or higher off the ground.

Electrical Energy SOUND HEAT KINETIC LIGHT Most of the energy transferred in homes and industry is ELECTRICAL ENERGY because it is easily transferred as … SOUND HEAT KINETIC LIGHT

Energy Changers In our homes there are many energy changers. Here are some of the electrical devices that might be found at home. Electrical energy => light + heat Electrical energy => light + sound + heat Electrical energy => heat + light + kinetic + sound

Energy Changers Heat + Light Sound + Light + Heat Heat + Light + Sound device energy in energy out Toaster Computer Hi-Fi Hair drier Kettle Drill Lava lamp Heat + Light Electrical Light + Sound + Kinetic + Heat Sound + Light + Heat Kinetic + Heat + Sound + Light Heat + Light + Sound Kinetic + Sound + Heat Light + Kinetic + Heat Notice that for each energy change, the most useful energy type is written first, and the energy that is wasted is written last.