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 the division of power between the states and the federal government. According to Article I, Section 8 of the Constitution, the Congress has delegated, or enumerated, powers and can do big things like declare war and coin money.