Physics 1 Ch 1 Review #2

Physics is the most basic science because

• you can better understand science in general if you understand physics.
• the ideas of physics extend into more complex sciences.
• underneath biology is chemistry and underneath chemistry is physics.
• all of the above.

Which one of the following steps is NOT part of the scientific method?

• Make a guess about the answer and predict its consequences
• Perform experiments to test the predictions.
• Repeat the experiments until the answers match the predictions. 
• Formulate a general rule based on the predictions and experimental outcomes.

A scientific fact is

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

A hypothesis is 

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

A theory is 

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

Which of these is a scientific hypothesis?

• Atoms are the smallest particle of matter that exist.
• The universe is surrounded by a second universe, which cannot be seen. 
• Albert Einstein is the greatest physicist of the twentieth century.

Which of the following statements is NOT true?

• Science is a method of answering theoretical questions.
• Technology is a method of solving practical problems.
• Science, not technology, excludes the human factor.
• Both science and technology exclude the human factor. 

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

• Identifying all the forces on a person who is walking uphill.
• Calculating the instantaneous velocity of an accelerating car.
• Identifying all the bones in the human body.
• Calculating the average density of a person.

To test a scientific hypothesis you would 

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

The difference between a hypothesis and a theory is that a hypothesis 

• is testable, whereas a theory is not testable.
• is not testable, whereas a theory is testable.
• can be revised, whereas a theory cannot be revised.
• is a guess that has not been well-tested, whereas a theory is a synthesis of well-tested and verified guesses.