Question

what role does observation play in the development of a scientific theory?

a. it is the final step in creating a theory.

b. it is irrelevant to theory formation.

c. it is used only after a theory is proven.

d. it is the initial step, involving the systematic study of phenomena.

which scientific concept is described by newton’s law of universal gravitation?

a. the reason why objects have mass

b. the attraction between objects with mass

c. the function of dna in organisms

d. the structure of atoms

Explanation:

First Question:

To determine the role of observation in scientific theory development:

• Option a: Observation is not the final step (theories are tested/modified later).
• Option b: Observation is crucial for forming hypotheses/theories.
• Option c: Observation occurs before/ during theory development, not just after.
• Option d: Observation is the initial step, systematically studying phenomena to generate ideas.

Newton’s law of universal gravitation describes the gravitational force between objects with mass.

• Option a: The law does not explain why objects have mass.
• Option b: Correct, as the law states every mass attracts every other mass.
• Option c: DNA is a biology concept, unrelated to gravitation.
• Option d: Atomic structure is a chemistry/physics topic, not related to gravitation.

Answer:

d. It is the initial step, involving the systematic study of phenomena.

Second Question: