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HEAT AND LIGHT

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  • Convections ocurrs when...
    heats travel through a gas or through a liquid (motion of molecules from the bottom to the top)
  • The process when a gas cools down and it changes into a liquid is called
    Condensation
  • What happens when a solid is heated?
    It changes into a liquid. (Melting)
  • What is heat?
    Heat is the transfer of thermal energy.
  • Radiation ocurrs when
    heat is transferred through empty space by electromagnetics waves.
  • What is thermal energy?
    Thermal energy is a form of energy that is transmitted as heat.
  • Refelction occurs when...
    light energy bounces off a surfaces and changes direction.
  • What is a insulator materials?
    A materials that doesn't transfer heat easily.
  • Refection causes light to
    change direction when it hits a surface.
  • Heat travels from the colder object to the hotter objet or heat travels from the hotter object to the colder obect?
    Heat travels from the hotter object to the colder obeject.
  • What is light?
    It's a form or radiant energythrat we can see with our eyes and is transferred thorugh radiation.
  • Refraction causes light to
    bend as passes through a different medium.
  • Conduction ocurrs when...
    the heat is transferred when two objects are in contact.
  • the basic laws of light:
    1.- light travels in straight lines, 2.- light can be reflected, 3.- light can be refracted.
  • The process when a liquid is heated and it changes into a gas is called
    Evaporation
  • What happens when a gas cools down?
    It changes into a liquid. (Condensation)
  • Heat can cuases changes such as:
    changes in state, expansion and chemical changes.
  • Name artificial sourcers
    light bulbs, computer screen, torches.....
  • Match the names of doraemon's friends with all of us
    Nobita=Jorge, Suneo=Sergio, Gigante=Héctor, Shizuka Nerea, Doraemon Pepo, Dorami Mara
  • Light is made up of ...
    all the colors combined together.
  • Refraction occurs when...
    light passes from one medium to another and the light energy changes direction.
  • Expansion ocurrs
    when thermal energy causes the molecules vibrate
  • What happens when a liquid is heated?
    It changes into a gas.(Evaporation)
  • What is a conductor material?
    A m aterial that transfers heat easily.
  • The process when a solid is heated and it changes into a liquid is called
    Melting
  • Nane a natural source of light
    The sun
  • The process when a liquid cools down and it changes into a solid is called
    Solidification
  • What is the difference between temeperature and heat?
    Temperature is the amount of thermal energy in an object adn heat is the transfer of thermal energy.
  • What is temperature?
    Temperature is the amount of thermal energy in an object.
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