hey all quick question, how exactly is separation of powers associated with democracy? i asked my teacher but he really confused me so any clarification would be appreciated!
Well really, there is no inherent link between the separation of powers and democracy. The separation of powers is merely the division between the three law making and enforcing powers that exist at the Australian federal level, while democracy is just a system of government in which all the people in a polity are involved in decision making (usually through representative parliament as exists in Australia). A democracy could exist without a separation of powers, and a separation of powers could exist without democracy.
But the separation of powers does support democracy in some ways. For example the separation between the legislature (parliament) and judiciary (courts), ensures that the courts, namely the High Court, maintain independence and can apply the constitution to ensure parliament only makes laws within its powers. The High Court also has the power to ensure parliament acts properly when making laws, if a law directs a court to do something which is not within its capacity or a law forces something which is so vastly inconsistent with the Australian governmental system (usually by being unconstitutional) it is struck out.
Furthermore the separation of powers allows the legislature and executive (governor-general representing the queen) to exercise reserve powers, these can be used in an emergency to ensure proper functioning of parliament, for example if the result of an election is unclear, the GG can declare that the last known prime-minister remain in charge until such time as a new prime-minister is determined. The GG can also dismiss prime-minsters and governments if they act illegally/improperly/incapably (this is not judging political issues or merely because the GG disagrees with what is happening but is due to serious issues) as well as call double-dissolutions which dissolve parliaments and bring new elections if there is a dead-heat and a bill cannot be passed by parliament following a set out process (the process of which is not relevant to the VCE course).
All of these checks and balances (in theory) help maintain the health of democracy by ensuring regular elections and that parliament respects the system and acts within its mandate by the people who elect the government and parliament (Australians).
If you remember and can explain it, how did your teacher explain it? I'm just interested to know.