Generation of Electricity

hydro energy

wind energy

geothermal energy

wave energy

All of these are (a)   energy sources.

These energy sources are non-renewable, except

• nuclear

• biomass

• natural gas

• petroleum

State the energy source involved to rotate the windmills to generate electricity.

(a)  

Complete the energy changes for power stations using non-renewable energy :

___________________ --> heat energy --> __________________ --> electrical energy

• chemical energy, potential energy

• chemical energy, kinetic energy

• kinetic energy, chemical energy

Complete the energy changes for hydroelectric power station :

___________________ --> ____________________ --> electrical energy

• kinetic energy, gravitational potential energy

• gravitational potential energy, kinetic energy

• gravitational potential energy, chemical energy

• kinetic energy, heat energy

Complete the energy changes for power station using nuclear fuel :

___________________ --> ____________________ --> _______________________ --> electrical energy

• heat energy, nuclear energy, kinetic energy

• kinetic energy, nuclear energy, heat energy

• nuclear energy, heat energy, kinetic energy

Complete the energy changes for power station using biomass :

___________________ --> ____________________ --> _______________________ --> electrical energy

• heat energy, chemical energy, kinetic energy

• chemical energy, heat energy, kinetic energy

• kinetic energy, heat energy, chemical energy

These 2 power stations have the energy changes as below :

chemical energy --> heat energy --> kinetic energy --> electrical energy

• non-renewable energy and nuclear energy

• biomass and hydroelectric

• non-renewable energy and biomass

• biomass and wind energy

State the type of current supplied by dry cell

(a)  

State the type of current supplied by power supply

(a)