Energy Transfers & Systems (Edexcel GCSE Physics Combined Science): Flashcards
📚Flashcards
Practise the cards
11 cards from this deck
ShowHide
Practise the cards
11 cards from this deck
System (energy context)
System (energy context)
Single object or group of objects you're interested in
Closed system
Closed system
Net change in energy is zero
Dissipated means
Dissipated means
Spreads out
What happens to energy when a system changes?
What happens to energy when a system changes?
Dissipated & stored in less useful ways
Sankey diagrams show
Sankey diagrams show
How efficient a transfer is
Heating pan transfers energy to
Heating pan transfers energy to
Thermal energy stores, increasing temperature
Camping stove energy store
Camping stove energy store
Chemical energy store
Lifting object does work against
Lifting object does work against
Gravity
Energy stores when lifting object
Energy stores when lifting object
Kinetic & GPS (gravitational potential)
Electrical equipment transfers
Electrical equipment transfers
Energy between different energy stores
Efficiency of transfer depends on
Efficiency of transfer depends on
How much of total energy supplied ends up as useful energy