Please enable JavaScript.
Coggle requires JavaScript to display documents.
Energy ((potential = store of energy, types of energy:
Kinetic: Energy an…
Energy
-
types of energy:
Kinetic: Energy an object has because of motion. Ek = 1/2 x M x V x V
chemical: Energy stored within compounds and their bonds.
Elastic: Energy stored in a object as a result of its shape being altered. Eepe = 1/2 x spring constant x E x E
Gravitational: Energy an object has due to its position in a gravitational field. Egpe = M x GFS x H
Thermal: Energy an object has due to its temperature. Energy Change = mass x SHC x change in temp
Law of conservation of mass:
Energy cannot be created of destroyed, only transformed or transferred.
Specific Latent Heat: The amount of energy required to change the state of 1kg of material with no change in temp.
-
-
Diodes: In reverse direction current is very small. In forward direction there is very little current until specific PD is achieved.
-
-
-
Internal Energy
Reasons affecting future energy supplies
Increasing demand for energy
Diminishing reserves of fossil fuels
-
National Grid
The national grid is the network of transformers , substations and cable systems that are used to distribute electricity across the UK. To reduce power loss during transmission , very high voltages are used to reduce the current.
-
-
-
Internal energy is the sum of the kinetic and potential energy of its particles.Potential energy of a particle is the store of energy particles have because of there relative positions.An objects temperature results from the kinetic energy of its constituent particles. Changes in temp are caused by changes in the amount of kinetic energy of the constituent particles.As the distance between particles increases there stored energy is increased as more work needs to be done to pull them apart.