Physics CH 1 About Science

Which one of the following problems would NOT be a part of physics?

• Calculating the average density of a person
• identifying all the forces acting on a person walking
• identifying all the bones in the human body
• calculating the instantaneous velocity of an accelerating car

A hypothesis is

• the long side of a right triangle
• an educated guess that has yet to be proven by experiment
• close agreement by competent observers fo the same phenomena
• a guess that had been tested over and over and is always found to be true

A scientific fact is

• something you believe to be true because it was taught ot you.
• a guess that has been tested over and over again and is always found to be true.
• close agreement by competent observers fo the same phenomena
• an educated guess that has yet to be proven by experiment

A theory is

• an educated guess that has yet to be proven by experiment
• a synthesis of a large collection of information including well-tested guesses.
• close agreement by competent observers fo the same phenomena
• a guess that has been tested over and over again and is always found to be true.

Which of these is a scientific hypothesis?

• atoms are the smallest particles of matter that exist.
• Albert Einstein is the greatest physicsist of the 20th century.
• The universe is surrounded by a second universe which cannot be seen.

A scientific hypothesis may turn out to be right or it may turn out to be wrong. If it is a valid hypothesis, there must be a test for proving that it is

• right
• wrong

To test a scientific hypothesis you would

• use the results of only the experiments that confirm the hypothesis.
• set up and experiment and look at the results.
• find the best result and report only that result.
• set up many different experiments and look at the results.

Science, art, and religion do not contradict one another because

• if you choose religion and art you can forget science.
• all three have differerent domains.
• if you chose the right one, you can forget the other two.
• if you chose science you can forget about religion and art.

Which of the following is a reason to express scientific findings mathematically?

• The findings become more difficult to prove by experiment.
• the findings become easier to verify by experiment.
• the findings become more confusing.
• the finding become less appealing to the public.

When scientific findings are expressed mathematically, they are easier to verify or disprove by experiment.

• true
• false