1. Energy (energy stores and energy pathways) Flashcards
How is energy transferred?
It is transferred between stores
What happens when energy is transferred to an object?
The energy is stored in one of the object’s energy stores
What are the 8 energy stores?
- Thermal energy stores
- Kinetic energy stores
- Gravitational potential energy stores
- Elastic potential energy stores
- Chemical energy stores
- Magnetic energy stores
- Electrostatic energy stores
- Nuclear energy stores
What are the 4 energy pathways (ways energy can be transferred through stores)?
- Mechanically
- Electrically
- By heating
- By Radiation
What does energy transferred mechanically mean?
Energy is transferred by a force doing work
What does energy transferred electrically mean?
It is energy transferred by moving charges
What is kinetic energy?
Energy that moving objects have in their kinetic store
What is gravitational potential energy?
Energy that is gained by an object when it is lifted above the ground
What is elastic potential energy?
Energy that objects store when an object is stretched
What is electrostatic energy?
Energy that is stored from charged objects interacting with one another
What is magnetic energy?
Energy stored from magnets interacting with each other
What is nuclear energy?
Energy stored from the energy released by atomic nuclei during nuclear reactions
What is thermal energy?
Energy stored by the temperature of the object (the hotter the object, the more thermal energy it has in this store)
What is chemical energy?
Energy stored from the energy that is released during chemical reactions
What is the gravitational field strength of earth?
9.8 n/kg
