Officer Aptitude Rating (OAR) Test 2025 – 400 Free Practice Questions to Pass the Exam

In a battery, the energy transformation that takes place is from chemical to electrical energy. This occurs due to the chemical reactions that take place within the battery's cells. These reactions involve the movement of electrons from one material to another, resulting in the release of electrical energy that can be harnessed to power devices.

Batteries utilize these chemical reactions to store energy in the form of chemical potential energy. When the battery is connected to a circuit, this stored energy is converted into electrical energy, allowing the flow of electricity to power various electronic devices. The efficiency and effectiveness of this transformation are crucial for the operation of batteries in daily use.

Other energy transformations listed, such as kinetic to potential energy or thermal to mechanical energy, do not accurately reflect the primary function of batteries. Electrical to thermal energy also does not apply in the context of how batteries supply power, since their main role is to convert chemical energy, not to dissipate that energy as heat.