Question

recall and write the definition of the review vocabulary term. origin
use your book to fill in the term that matches each definition. acceleration of an object due only to the effect of gravity motion of an object when gravity is the only significant force acting on it
complete the following statements about free - fall acceleration. • free fall is the motion of an object when • galileo discovered that, neglecting the effect of air, all objects in free fall • galileos results were verified • near earths surface, free - fall acceleration is

Explanation:

1. Definition of "origin": In a coordinate - system, the origin is the point (0,0) where the axes intersect. In a more general sense, it can refer to a starting point or source.
2. Term for acceleration due to gravity: The term is "free - fall acceleration".
3. Term for motion with gravity as the only significant force: The term is "free fall".
4. Completing free - fall statements:

• Free fall is the motion of an object when gravity is the only significant force acting on it.
• Galileo discovered that, neglecting the effect of air, all objects in free fall accelerate at the same rate.
• Galileo's results were verified through experiments.
• Near Earth’s surface, free - fall acceleration is approximately 9.8 m/s².

Answer:

1. In a coordinate - system, the point (0,0) where axes intersect; a starting point or source.
2. Free - fall acceleration
3. Free fall
4. Gravity is the only significant force acting on it; accelerate at the same rate; through experiments; approximately 9.8 m/s²