Answer:

9. Why is it important to specify a reference frame when describing motion?

A. Because Earth is continuously in motion; an object at rest on Earth will be in motion when

viewed from outer space.

B. Because the position of a moving object can be defined only when there is a fixed

reference frame.

C. Because motion is relative term; it appears differently when viewed from a different

reference frame.

D. Because motion is always described in Earth's frame of reference; if another frame is used, it has to be specified with each situation.

Explanation:

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Answer:

A po yan po siguro

Explanation:

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