Complete the sentence by choosing the correct word given in the brackets.
A generator converts - electrical/ mechanical) energy to -- (electrical/ mechanical) energy.

Explanation

To complete the sentence, we need to identify the correct words to fill in the blanks regarding the function of a generator.

1. **Understanding the Function of a Generator**:
- A generator is a device that converts energy from one form to another. Specifically, it converts mechanical energy into electrical energy.

2. **Identifying the First Blank**:
- The first blank asks what type of energy a generator converts from. Since a generator requires some form of energy to operate, and it is known that it uses mechanical energy to produce electricity, we fill the first blank with "mechanical".

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