Answer:
1. rest
2. rest
3. velocity
4. speed
5. direction
6. unbalanced force
Explanation:
Newton's First Law of Motion is all about "Inertia." It states that every object will remain in its state of rest or motion unless a force compels it to change its current state. This force is known as "unbalanced force," a force which causes an object to accelerate.
For example, a ball will remain on the floor (at rest) unless somebody kicks the ball. The force of the kick is considered the "unbalanced force" because it made the ball move.