Introduction to Physics Chapter 1

The branch of science that studies matter and energy and how they interact is called

• physics

• biology

• chemistry

• earth science

The ________________________________ consists of making observations, formulating a hypothesis, testing the hypothesis with new observations.

• scientific method

• line-item veto

• theory of evolution

• Hund principle

A _____________ is a hypothesis that has been supported with repeated testing.

• natural law

• theory

• fact

• biased opinion

A ________________ is a statement that summarizes the results of many observations.

• biased opinion

• theory

• scientific law

• prompt

A theory can never become a law.

• True

• False

A scientific investigation is not valid unless every step in the scientific method is present and carried out in the exact order listed in this lesson.

• True

• False

When a theory has been known for a long time, it becomes a law.

• True

• False

Which of the following is closest in meaning to the word “hypothesis”?

• fact

• law

• conclusion

• suggested explanation

Why do scientists sometimes discard theories?

• The steps in the scientific method were not followed.

• Public opinion disagrees with the theory.

• Contradictory observations are found.

• Congress voted against it.

If a hypothesis is rejected by the observations from an experiment, then the experiment

• May have been a success.

• Was a failure.

• Must have been poorly designed.

• Didn’t follow the scientific method.