The energy of one joule per second given out by a source is called_________.

Explanation

To solve the question, "The energy of one joule per second given out by a source is called_________.", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Concept of Energy and Power**:
- Energy is the capacity to do work, and it can be measured in joules (J).
- Power is defined as the rate at which energy is transferred or converted. It tells us how much energy is used or produced over a certain period of time.

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