The physics definition of period is the duration of one complete cycle of a wave or oscillation.
Federalism- a form of government where a group of states, territories, etc., are governed by one central power. Federalists- a member of the Federalist party. Dual Federalism-the federal government and the statesâ government have separate, but equal, powers.
A federal system of government is one that divides the powers of  government between the national (federal) government and state and  local governments. The Constitution of â¦ the United States  established the federal system, also known as federalism.Under  federalism, each level of government has sovereignty in some areas  and shares powers in other areas. For example, both the federal and  state governments have the power to tax.n a very short summary, our Federal system of government is one that creates three balanced branches of government, with power and authority shared among them and limits plac â¦ ed upon each branch. The Federal government is assigned the task of improving things of national importance.