A. Explain the progression of ideas from a variety of scientists that led to the current understanding of
atomic theory. (2 points)

b. Choose one example from the historical development of the atomic theory, and use it to illustrate how models are used in the process of forming conclusions from scientific experiments. (3 points)

answer:

Sort the questions based on whether they are better answered by an observational study or a controlled experiment.

Explanation:

c. magnitude and direction

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.