Energy Flashcards
1
Q
What is energy?
A
Energy is a quantity using a joulemeter when transferred/changed can cause work to be done.
2
Q
Law of conservation of energy
A
Energy is neither created or destroyed but only transformed from 1 type to another
3
Q
Types of energy stores
A
Sound Heat/thermal Electric Elastic potential Light Potential Gravitational Atomic/Nuclear Chemical (Food and Fuel) Kinetic
4
Q
efficiency equation
A
useful energy output/ total energy input
5
Q
What does a sankey diagram show?
A
The relationship between input and output energy.
6
Q
Efficiency
A
The proportion of the useful output energy to the total input energy
7
Q
Nuclear Energy
A
DISADVANTAGES: - non renewable - In the event of a nuclear disaster, radiation can cause genetic mutations - very high decommissioning costs ADVATNAGES -
