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.
Federalism is a system of government in which power is divided between a national (federal) government and various state governments. In the United States, the U.S. Constitution gives certain powers to the federal government, other powers to the state governments, and yet other powers to both. States have their own legislative branch, executive branch, and judicial branch.