Energy Stores and Systems

• What is the result of $2.01 =$$1.98$?


  False
• What does it mean when something is no longer proportional?

  It indicates a change in relationship
• What is energy in terms of usage?

  • Energy is never used up
  • It is transferred between different energy stores
  • It is transferred to different objects
• What are the types of energy stores mentioned?

  Thermal, kinetic, chemical, gravitational potential
• How is energy transferred to an object?

  It is stored in one of the object's energy stores
• What are the types of energy stores listed?

  1. Thermal energy stores
  2. Kinetic energy stores
  3. Chemical energy stores
  4. Gravitational potential energy stores
  5. Elastic potential energy stores
  6. Magnetic energy stores
  7. Electrostatic energy stores
  8. Nuclear energy stores
• How is energy transferred mechanically?

  By doing work through a force
• How is energy transferred electrically?

  By moving charges
• How is energy transferred by heating?

  Through conduction, convection, or radiation
• What happens when a system changes?

  Energy is transferred
• What is a closed system?

  No matter or energy enters or leaves
• What is the total energy change in a closed system?

  Always zero
• How can energy be transferred by heating in boiling water?

  By heating the water in a kettle
• How does energy transfer occur in a kettle?

  Through heating the water's thermal energy store
• What happens to the water's temperature when energy is transferred?

  It causes the temperature to rise
• How is energy transferred electrically in a kettle?

  By moving charges to heat the water
• What is the relationship between energy transfer and temperature in a kettle?

  Energy transfer increases the water's temperature
• How does energy transfer differ between heating and mechanical work?

  Heating transfers energy through temperature change
• What is the significance of energy being transferred in a system?

  It indicates changes in the system's state
• What is the role of energy stores in a system?

  They hold energy for transfer during changes
• What is the definition of a system in this context?

  A single object or a group of objects
• What happens to energy in a closed system when changes occur?

  Energy is transferred but not lost
• How does energy transfer occur between different energy stores?

  Through interactions and changes in state
• What is the impact of energy transfer on a closed system's total energy?

  The total energy remains constant
• How does energy transfer relate to the concept of work?

  Work is a method of transferring energy
• What is the effect of energy transfer on temperature in a system?

  It can increase or decrease temperature
• What is the relationship between energy transfer and system changes?

  Energy transfer drives changes in the system
• How does energy transfer affect the state of a system?

  It alters the system's energy balance
• What is the significance of energy being transferred in a closed system?

  It indicates energy conservation within the system
• What is the definition of a closed system in energy terms?

  No energy enters or leaves the system
• How does energy transfer relate to the concept of a system?

  A system is defined by its energy transfers
• What is the overall effect of energy transfer on a closed system's energy?

  The energy remains unchanged overall
• How does energy transfer occur in a boiling kettle?

  Through heating the water's thermal energy store
• What happens to the water's temperature when energy is transferred?

  It causes the temperature to rise
• How is energy transferred electrically in a kettle?

  By moving charges to heat the water
• What is the relationship between energy transfer and temperature in a kettle?

  Energy transfer increases the water's temperature
• How does energy transfer differ between heating and mechanical work?

  Heating transfers energy through temperature change
• What is the significance of energy being transferred in a system?

  It indicates changes in the system's state
• What is the role of energy stores in a system?

  They hold energy for transfer during changes
• What happens to energy in a closed system when changes occur?

  Energy is transferred but not lost