The prefix used for `10^(3)` is kilo.

Answer

To solve the question regarding the prefix used for \(10^{3}\), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks whether the prefix for \(10^{3}\) is "kilo". We need to determine if this statement is true or false.

2. **Recall the Prefixes**: In the metric system, various prefixes are used to denote powers of ten. The prefix for \(10^{3}\) is specifically what we need to identify.

3. **Identify the Prefix for \(10^{3}\)**:
- The prefix "kilo" represents \(10^{3}\).
- Therefore, \(1 \text{ kilo} = 1000\) or \(10^{3}\).

4. **Conclusion**: Since "kilo" corresponds to \(10^{3}\), the statement in the question is indeed true.

5. **Select the Answer**: Based on our understanding, we can conclude that the correct answer is:
- Option 1: True.

### Final Answer:
The prefix used for \(10^{3}\) is kilo. Therefore, the answer is **True** (Option 1).

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