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Start,ENERGY,UNIT 5,ENERGY,POTENTIAL, KINETIC, MECHANICAL,OTHER FORMS OF ENERGY,LIGHT,HEAT,copy,We can transform and use energy in many ways, but we must be responsible and use energy in ways that do not harm the environment.,Energy,1,Potential, kinetic and mechanical energy,copy,This type of energy is the stored energy an object has because of its position or state.,Potential energy,copy,height,storedenergy,Kinetic energy,This type of energy comes from motion and it depends on both mass and speed.,copy,What forms of energy does this object have?,bicycle,swing,What forms of energy does this object have?,crane,container,What forms of energy does this object have?,ball,What forms of energy does this object have?,What forms of energy do this objects has?,a) Kinetic energy,b) Potential energy,c) Kinetic and potential energy,next question,FANTASTIC,WRONG ANSWER,try again,c) Kinetic and potential energy,b) Potential energy,What forms of energy do this objects has?,a) Kinetic energy,next question,FANTASTIC,WRONG ANSWER,try again,c) Kinetic and potential energy,b) Potential energy,a) Kinetic energy,What forms of energy do this objects has?,next question,FANTASTIC,WRONG ANSWER,try again,c) Kinetic and potential energy,b) Potential energy,What forms of energy do this objects has?,a) Kinetic energy,cONTINUE,CONGRATULATIONS!,WRONG ANSWER,try again,Mechanical energy,This form of energy is the sum of potential and kinetic energy.,copy,Potentialenergy,Kineticenergy,Soundenergy,Electricalenergy,2,Other types of energy,Lightenergy,Heatenergy,copy,Chemicalenergy,Electricalenergy,copy,This type of energy comes from the movement of electrons from one atom to another.,Chemicalenergy,This type of energy is released during chemical reactions.,copy,Soundenergy,This type of energy is produced from vibrations that we can detect with our ears or bodies.,copy,Experimentstime!!,3,Light,Light is a form of energy that iluminates objects around us.,copy,Light travels, at 300.000 km per second, in a straight line until hits an object.,The light seems to be white, but it is really made up of seven different colours.,copy,Light and colours,Red,Green,Blue,White,+,+,When light hits an object, the object can absorb some colours and reflect others. The reflected colours are the ones that we see.,Light and colours,copy,Absorb:redorangegreenblueindigoviolet,Reflect:yellow,Reflection is when light hits an object and the light is reflected,Reflection,copy,When light hits a rough surface, the rays reflect in many different directions and it doesn't reflect clear images.,When light hits a smooth surface, all the rays of light reflect in one direction and it reflects very clear images.,Refraction happens when light changes direction as it passes from one medium (material) to another.,Refraction,When light travels from air into water, it slows down, causing it to change direction slightly.,copy,water,air,reflection,refraction,4,Heat,copy,Matter is composed of tiny particles that are always moving and producing heat.,Heat transfer,The hotter, faster-moving, particles transmit energy (heat) to the cooler, slower-moving particles.,When all the particles in a substance have the same temperature, it is called thermal equilibrium.,copy,copy,There are three ways heat can be transferred from one substance to another:,CONDUCTION,CONVECTION,RADIATION,Conduction,Heat is transferred by conduction when a heat source comes into contact with another object.,copy,flame,metal rod,metal pot,skin (hand),Metals are good thermal conductors because their particles are close together.,Plastic and woolare good thermal insulators because they do not transfer heat effectively.,Radiation,Convection,Convection,Density,When liquids and gases heat up, their particles become less dense and rise. When the particles lose heat, they sink.,copy,Circularmovement,Conduction,Radiation,Radiation,This energy can be transferred to other objects at a distance, without any physical contact.,copy,Conduction,Convection,copy,Effects of thermal energy,When we add thermal energy to substance they increase in volume and change state.,copy,EXPANSION,EVAPORATION,MELTING,TASK,Copy in your notebook the slides with this symbol,copy,Remember that YOUR NOTEBOOK IS IMPORTANT, take care of presentation.

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UNIT 5 - ENERGY by Antonio Rodriguez Alvarado on Genially

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Start,ENERGY,UNIT 5,ENERGY,POTENTIAL, KINETIC, MECHANICAL,OTHER FORMS OF ENERGY,LIGHT,HEAT,copy,We can transform and use energy in many ways, but we must be responsible and use energy in ways that do not harm the environment.,Energy,1,Potential, kinetic and mechanical energy,copy,This type of energy is the stored energy an object has because of its position or

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FQ colindres