Conceptual Physics Ch 1

Eratosthenes learned about the position of the sun on June 22 by A) setting up sticks at both Syene and Alexandria. B) setting up a stick at Alexandria. C) consulting library information. D) setting up a stick at Syene.

C) consulting library information.

In science, a theory is A) a synthesis of a large body of well-tested knowledge. B) unchangeable. C) an educated guess. D) less than a fact.

A) a synthesis of a large body of well-tested knowledge.

In science, theories A) may change B) are more important than facts C) mean very little D) are absolute

A) may change

The easiest way for you to measure the distance between the Earth and the moon is to place in your line of sight to the moon a A) string B) Coin C) a piece of cheese D) compass

B) Coin

Which of these is not a scientific hypothesis? A) Protons carry an electric charge. B) Undetectable particles are some of nature's secrets. C) Charged particles bend when in a magnetic field. D) All of the above are scientific hypotheses.

B) Undetectable particles are some of nature's secrets.

The scientific method is most effective in A) discovering new things. B) gaining, organizing, and applying new knowledge. C) performing experiments. D) making hypotheses. E) making theories.

B) gaining, organizing, and applying new knowledge.

When a scientist is dishonest and reports false information, he or she A) like in so many other professions, will be excused by the scientific community. B) gets no second chance in the scientific community

B) gets no second chance in the scientific community

In science, an educated guess is a A) theory. B) hypothesis.

B) hypothesis.

Science is a body of knowledge that A) condenses knowledge into testable laws. B) describes order in nature. C) is an ongoing activity of humans. D) All of the above choices are correct.

D) All of the above choices are correct.

The safest way for you to view the sun is with A) binoculars. B) a telescope C) colored sunglasses. D) pinhole images.

D) pinhole images.

The synthesis of a large collection of information that contains well-tested and verified hypotheses about certain aspects of the world is known as a scientific A) law or principle. B) fact C) hypothesis. D) theory.

D) theory.

Which of these is a scientific hypothesis? A) The Moon is made of green cheese. B) Atomic nuclei are the smallest particles in nature. C) A magnet will pick up a copper penny. D) Cosmic rays cannot penetrate the thickness of your Conceptual Physics textbook. E) All of the above are scientific hypotheses.

E) All of the above are scientific hypotheses.