Florida Teacher Certification Examinations (FTCE) Subject Area Practice Test

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What occurs between two objects with opposite electrostatic charges?

  1. They repel one another

  2. They remain neutral

  3. They attract one another

  4. They transform into ions

The correct answer is: They attract one another

When two objects have opposite electrostatic charges, they will attract one another due to the fundamental principle of electrostatics, which states that unlike charges attract. This attraction occurs because positively charged objects have a deficit of electrons, while negatively charged objects have an excess of electrons. The interaction between the two creates a force pulling them toward each other, which is commonly observed in everyday scenarios, such as when a charged balloon is drawn to hair or a wall. In contrast, objects with like charges repel each other, remain neutral indicates a balance of charges and does not apply to the scenario of opposite charges, and transforming into ions refers to a process involving the gain or loss of electrons, which is not directly related to the interaction of opposite charges.