15
QuizMultiple Choice

Evaluating Scientific Explanations — Unit test

Question 15 • Physical Science Sem 1 (2003310) BCPS 2026-27

Which statement best describes how an existing theory is often affected by the development of new technology?

Answer
A
An existing theory is thrown out and replaced with a completely new theory based on the new observations.
B
An existing theory is modified so that it can explain both the old and new observations.
C
An existing theory remains the same because a theory is a proven fact that is always true.
D
An existing theory is kept unchanged while a new theory is developed to explain the new observations.

Explanation

New technology can reveal observations that were not possible to detect before. Scientists usually revise an existing theory to account for those new findings while preserving its successful explanations of earlier observations. Therefore, the best choice is “An existing theory is modified so that it can explain both the old and new observations.”

AI-written and checked against the verified answer.