PHYS 165 FINAL EXAM QUESTIONS AND
VERIFIED ANSWERS ALREADY GRADED A+
which statement best describes the scientific method?
A systematic process used to find a solution to a problem
__________ can be thought of collectively as objects in nature
matter
a good hypotheses is one that is both _________ and ________
plausible and testable
when an increase in the independent variable causes the depended variable to
increase this is called an
direct proportion
which of the following best describes a theory
,an explanation for patterns in nature that is supported by scientific evidence and
verified multiple times by various groups of researchers; this is a broader
explanation of larger portions of nature
which of the following is a measurement of time?
the second
which of the following is a measurement of electric current?
the ampere
which refers to the agreement of several measurements among eachother?
precise
how many sig figs are in 5,302,000?
4
how many sig figs are in 0.05021 kg?
4
,how many sig figs are in 5.20x10^6 m?
3
classical physics is an excellent approximation as long as three things are true.
which of the following statements is one of these three things?
matter must be moving at speeds less than about 1% of the speed of light
besides factors that are unique to the situation, the factors contributing to
uncertainty in a measurement include:
limitations of the measuring device, the skill of the person making the
measurement.
the mass of a block of wood is reported as 548 +/- 21g. What is the percent
uncertainty?
21g/548g x 100%=3.8321 ---> 3.8%
the time for a drag race is 17.5 s +/- 8.1%. what is the absolute uncertainty?
17.5s x 8.1% = 1.4175 ---> 1.4s
, convert 0.7km to meters
0.7km x 1000m/1km = 700m
convert 7200 mg to grams
7200mg x 1/1000mg = 7.2g
a person runs a race in 12,710s. how many minutes is this time?
12,710s x 1min/60s= 211.8min
what do you get when you divide 42.0m by 15.0s?
42.0m / 15.0s= 2.80m/s
VERIFIED ANSWERS ALREADY GRADED A+
which statement best describes the scientific method?
A systematic process used to find a solution to a problem
__________ can be thought of collectively as objects in nature
matter
a good hypotheses is one that is both _________ and ________
plausible and testable
when an increase in the independent variable causes the depended variable to
increase this is called an
direct proportion
which of the following best describes a theory
,an explanation for patterns in nature that is supported by scientific evidence and
verified multiple times by various groups of researchers; this is a broader
explanation of larger portions of nature
which of the following is a measurement of time?
the second
which of the following is a measurement of electric current?
the ampere
which refers to the agreement of several measurements among eachother?
precise
how many sig figs are in 5,302,000?
4
how many sig figs are in 0.05021 kg?
4
,how many sig figs are in 5.20x10^6 m?
3
classical physics is an excellent approximation as long as three things are true.
which of the following statements is one of these three things?
matter must be moving at speeds less than about 1% of the speed of light
besides factors that are unique to the situation, the factors contributing to
uncertainty in a measurement include:
limitations of the measuring device, the skill of the person making the
measurement.
the mass of a block of wood is reported as 548 +/- 21g. What is the percent
uncertainty?
21g/548g x 100%=3.8321 ---> 3.8%
the time for a drag race is 17.5 s +/- 8.1%. what is the absolute uncertainty?
17.5s x 8.1% = 1.4175 ---> 1.4s
, convert 0.7km to meters
0.7km x 1000m/1km = 700m
convert 7200 mg to grams
7200mg x 1/1000mg = 7.2g
a person runs a race in 12,710s. how many minutes is this time?
12,710s x 1min/60s= 211.8min
what do you get when you divide 42.0m by 15.0s?
42.0m / 15.0s= 2.80m/s
