Admin Which of these devices transfers thermal energy from a cool area to a warm area?
Chapter 16: Thermal Energy and Heat
| A | B |
|---|---|
| internal combustion engine | a heat engine in which the fuel burns inside the engine |
| central heating system | a heating system that heats many rooms from one central location |
| heat pump | a device that uses work to transfer thermal energy from a colder area to a warmer area |
Is energy that is transferred from warmer to cooler materials?
Heat
Heat is the thermal energy that flows from a warmer object to a cooler object. Heat flows only one way, from warmer to cooler objects. Net heat transfer ends when two objects reach the same temperature (“thermal equilibrium”).
What device changes thermal energy into mechanical energy?
Devices used to convert thermal energy to mechanical energy are called heat engines.
What is the transfer of thermal energy by collisions between particles?
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer to together, than in gases, where particles are further apart.
Is a device that converts thermal energy into mechanical energy?
Devices used to convert thermal energy to mechanical energy are called heat engines. mechanism converting the kinetic energy of the moving working fluid into the work.
Does cold between objects transfer from cooler object into warmer object?
Suppose you place an ice cube in a bowl on a table. Heat is always the transfer of energy from an object at a higher temperature to an object at a lower temperature. So energy flows from the particles in the warmer bowl to the particles in the cold ice and, later, the cooler water.