Topic 3+4 Flashcards
4 forms of energy
Chemical, Electrical, Mechanical, Thermal
what is electrical energy
Energy transferred by the movement of electrons
what is chemical energy
Potential energy stored in chemical bonds
what is electrical energy
Energy transferred by the movement of electrons
what is Mechanical Energy
The energy of something moving or in motion
What is thermal energy
The total kinetic energy of the particles in a substance
What are the main 4 things that an Electric motor needs
Magnets, Commutator, Brushes, Armature
What are the main 4 things that an Electric motor needs
Magnets, Commutator, Brushes, Armature
Direct Current (DC)
current that flows in only one direction
What is a transformer
A device that changes electricity at one voltage into electricity at a different voltage
Why can’t every machine be 100% efficient
There will always be some energy loss caused by friction
Why can’t every machine be 100% efficient
There will always be some energy loss caused by friction
What are some to produce steam
- Nuclear fission
- Geothermal energy - Biomass
- Cogeneration
