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Thermal Energy Review

  •   Game Code: 4079566
  •  English    67     Public
    Review of MiStar Unit 7.3-Moving Thermal Energy
  •   Study   Slideshow
  • Balloon 1 and Balloon 2 are filled with the same amount of air. The air in Balloon 1 is cooled so that it is at a lower temperature than the air in Balloon 2. The air in which of these balloons has less thermal energy?
    The air in balloon 1 has less thermal energy
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  • Over time, what cup will loose thermal energy to the air around it? Why?
    Cup 1 because it is a higher temperature than the air in the room. Thermal energy flows from areas of high temperature to low temperature
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  • Over time, what cup will gain thermal energy from the air around it?
    Cup 2 because it is a lower temperature than the air in the room. Thermal energy flows from areas of high temperature to areas of low temperature.
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  • Over time, these two cups will both be the same temperature as the room. What is it called when all of the molecules will be moving at the same speed?
    Equilibrium
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  • When a solid begins to melt, are its molecules moving faster or slower?
    Faster. (The solid molecules are gaining a lot of kinetic energy)
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  • True or False: As the temperature of an object increases, its thermal energy also increases
    True
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  • True or False: Temperature is the average speed of an objects molecules
    True
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  • True or False: Thermal energy is the total amount of kinetic energy in an object's molecules
    True
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  • What happens to energy when molecules collide?
    Energy transfers from the molecule with more energy to the molecule with less energy
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  • When an object's molecules slow down, what happens to the temperature of that object?
    The temperature of the object will decrease
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  • If two objects are made of the same material, are the same temperature but different sizes (large and small) what object will have greater thermal energy?
    The larger object
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  • The total kinetic energy of tiny particles that make up matter is –
    thermal energy
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  • The transfer of thermal energy that occurs in solids, liquids and gases when two substances of different temperatures touch.
    conduction
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  • Regarding thermal energy, the faster the tiny particles of matter move, the colder the matter becomes. (True or False)
    False
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  • The transfer of thermal energy from one place to another by the movement of fluids, which occurs on a large scale in atmospheric gases, occeans and earth’s mantle.
    convection
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  • The energy transferred between two objects of different temperatures.
    heat
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