Which type of energy conversion occurs in an electric can opener?

An electric can opener primarily converts electrical energy into mechanical energy. This is accomplished when the electric motor, powered by electricity, drives the cutting mechanism that opens the can. The process begins when the device is plugged in and turned on, allowing electrical energy from the outlet to flow through the motor. As a result, the motor rotates, generating mechanical energy that moves the cutting blade and performs the task of opening the can.

In this context, the other types of energy conversions presented do not accurately describe the operation of an electric can opener. Mechanical to electrical would imply that the device somehow converts its mechanical actions back into electrical energy, which is not the case here. Chemical to mechanical would involve a transformation from chemical energy sources, such as in a battery, directly into mechanical work, which does not happen in a standard electric can opener. Thermal to mechanical conversion generally relates to the conversion of heat energy into movement, as seen in steam engines, rather than the direct operation of an electric motor. Thus, the correct characterization of the process is seen as the conversion of electrical energy into mechanical energy.