The concept used to determine if an object is in motion is a "reference point".

Here's the step-by-step explanation:

1. A reference point is a place or object used for comparison to determine if something is in motion.

2. An object is in motion if it changes position relative to a reference point.

3. Objects that are fixed relative to Earth - like a building or a tree - can be used as reference points.

4. If the position of the object changes when observed from the reference point, the object is considered to be in motion.

5. For example, if you are in a moving car, the trees outside the car would be your reference point. If you see the trees moving backwards

Question

The concept used to determine if an object is in motion is a "reference point".

Here's the step-by-step explanation:

1. A reference point is a place or object used for comparison to determine if something is in motion.

2. An object is in motion if it changes position relative to a reference point.

3. Objects that are fixed relative to Earth - like a building or a tree - can be used as reference points.

4. If the position of the object changes when observed from the reference point, the object is considered to be in motion.

5. For example, if you are in a moving car, the trees outside the car would be your reference point. If you see the trees moving backwards

Knowee AI · Accepted Answer

The concept used to determine if an object is in motion is a "reference point".

Here's the step-by-step explanation:

1. A reference point is a place or object used for comparison to determine if something is in motion.

2. An object is in motion if it changes position relative to a reference point.

3. Objects that are fixed relative to Earth - like a building or a tree - can be used as reference points.

4. If the position of the object changes when observed from the reference point, the object is considered to be in motion.

5. For example, if you are in a moving car, the trees outside the car would be your reference point. If you see the trees moving backwards

It is used to determine if the object is in motion.Group of answer choicesmotiongravityreference pointforce