Understanding the Concepts

* Power: The rate at which work is done. It's measured in watts (W).

* Work: The force applied to an object multiplied by the distance it moves in the direction of the force. It's measured in joules (J).

* Force: A push or pull that can change an object's motion. Measured in newtons (N).

* Distance: The length of the path an object travels. Measured in meters (m).

Calculations

1. Calculate the work done:

* Work (W) = Force (F) × Distance (d)

* W = 1 N × 2 m = 2 J

2. Calculate the power:

* Power (P) = Work (W) / Time (t)

* P = 2 J / 1 s = 2 W

Therefore, 2 watts of power are expanded when a force of 1 newton moves a book 2 meters in one second.