Resistance is the ability of an object to oppose the flow of electric current. In simple terms, it acts like a barrier that slows down the movement of electrons in a circuit. This property is measured in ohms and is crucial for controlling how much electricity flows through devices like light bulbs and computers. In a broader context, resistance can also refer to the struggle against change or control, such as in social movements. For example, the Civil Rights Movement in the United States was a form of resistance against racial discrimination, where people fought for equality and justice.