Energy stores and systems Flashcards
(13 cards)
If energy can only be transferred what can it not be?
Created or destroyed
What is a thermal energy system?
Heat
what is kinetic energy?
Movement
Name the 8 types of energy stores
Thermal ,kinetic , chemical , electrostatic , gravitational potential , elastic , magnetic , nuclear
What 4 ways can energy be transferred?
Mechanical , electrical , radiation and heating
what does 2 things does the transfer of radiation contain?
Light waves and sound waves
what is an open system?
where the outside world can influence the change as it interacts with the matter (Lose or gain)
what is an closed system?
where it is separated from the outside world and matter and energy cant leave
What are the 2 types of work done?
Mechanical and Electrical
What is electrical transfer?
when current flows , could be used in wires to overcome resistance
What is mechanical transfer?
Using a force to move an object
If a car breaks what would this cause in the wheels?
Friction
Once the car breaks and friction occurs what energy store would be transferred to the thermal energy which slows down the train?
Kinetic energy
