Define rest and motion.

Answer: In physics, rest is a state of an object when its position does not change with respect to its surroundings over time. An object is said to be at rest if it remains stationary or is not moving relative to a reference point. For example, a book lying on a table that remains in the same position can be considered at rest with respect to the table. On the other hand, motion is a state of an object when its position changes with respect to its surroundings over time. An object is said to be in motion if it is moving relative to a reference point. For example, a person walking on the street is in motion as their position changes relative to the surrounding objects (trees, buildings, etc.) over time.