P1 - Conservation and Dissipation of Energy Flashcards
What is Energy measured in?
Joules (J)
Which systems can a thermodynamic system be in?
An open system
A closed system
An isolated system
How is energy tranferred between stores?
Through pathways
What are the 4 pathways where energy can be transfered?
Mechanically
Electrically
Be heating
By radiation
What does a mechanical pathway mean?
Energy transfer when a force acts on an object
What does an electrical pathway mean?
Energy transfer when a charge moves through a current
What does a ‘by heating’ pathway mean?
Energy transfer from a hotter object to an colder one
What does a ‘by radiation’ pathway mean?
Energy transfer by electromagnetic waves e.g. visible light
Where is Kinetic Energy store found?
In a moving object
Where Where is Chemical Energy store found?
Found in a fuel or battery
Where is Gravitational Potential Energy store found?
In an object above ground
Where is Elastic/ Strain Energy store found?
In a strethced or squashed object
Where is Thermal Energy store found?
In a substances temperature
Where is Magnetic Energy store found?
In two seperate magnets that attract or repel
Where is Nuclear Energy store found?
Radioactive decay
