All official action of the Council shall be by ordinance, resolution, or motion. Action by resolution or motion shall be limited to matters required or permitted to be so done by this Charter or by State or Federal law or pertaining to the internal affairs or concerns of the City government. All acts carrying a penalty for the violation thereof shall be by ordinance. The Council shall have the authority to establish penalties for violations of ordinances, but no punishment for violation of any ordinance shall exceed a fine of $500.00 or imprisonment for ninety (90) days, or both, in the discretion of the court as provided by State law.