Energy ⚡️ Flashcards
What measurement is energy measured in?
Joules (J)
What is the law of conservation of energy?
Energy is not created nor destroyed
What are the 8 energy stores?
Magentic, thermal, chemical, kinetic, electrostatic, elastic potential, gravitational potential, nuclear
What is time measured in?
Seconds (s)
What is work done measured in?
Joules (J)
What is an insulator
A material that does not allow the passage of heat and sound
What is a conductor?
A material that allows elevtricity/heat/etc to pass through it
Name a conductor
Metal, copper, brass, steel, gold, alluminium
Name an insulator
Plastic, wood, glass, rubber
What are the 4 ways of energy transfer?
Mechanical, electrical, heating, radiation
What is heat?
A form of energy found in both natural and artificial things
What is conduction
When heat or electricity is transmitted through the MATERIAL of a substance
What is convection
When heat or electricity travels through the movement of liquids or gases
Equation triangle
Above= energy or work done
Below=power and time
What are the 4 forms of heat transfer?
Conduction, (solids)
convection, (liquids and gasses)
radiation, (vaccum, solid, liquid and gasses)
evaporation
