PHYS 165 FINAL EXAM
1. which statement best describes the scientific method? A systematic process used
to find a solution to a
problem
2. __________ can be thought of collectively as objects in matter
nature
3. a good hypotheses is one that is both _________ and plausible and testable
________
4. when an increase in the independent variable causes direct proportion
the depended variable to increase this is called an
5. which of the following best describes a theory an explanation for pat-
terns in nature that is sup-
ported by scientific evi-
dence and verified mul-
tiple times by various
groups of researchers;
this is a broader explana-
tion of larger portions of
nature
6. which of the following is a measurement of time? the second
7. which of the following is a measurement of electric the ampere
current?
8. which refers to the agreement of several measure- precise
ments among eachother?
9. how many sig figs are in 5,302,000? 4
10. how many sig figs are in 0.05021 kg? 4
, PHYS 165 FINAL EXAM
11. how many sig figs are in 5.20x10^6 m? 3
12. classical physics is an excellent approximation as long matter must be moving at
as three things are true. which of the following state- speeds less than about 1%
ments is one of these three things? of the speed of light
13. besides factors that are unique to the situation, the limitations of the measur-
factors contributing to uncertainty in a measurement ing device, the skill of the
include: person making the mea-
surement.
14. the mass of a block of wood is reported as 548 +/- 21g. 21g/548g x 100%=3.8321
What is the percent uncertainty? ---> 3.8%
15. the time for a drag race is 17.5 s +/- 8.1%. what is the 17.5s x 8.1% = 1.4175 --->
absolute uncertainty? 1.4s
16. convert 0.7km to meters 0.7km x 1000m/1km =
700m
17. convert 7200 mg to grams 7200mg x 1/1000mg =
7.2g
18. a person runs a race in 12,710s. how many minutes is 12,710s x 1min/60s=
this time? 211.8min
19. what do you get when you divide 42.0m by 15.0s? 42.0m / 15.0s= 2.80m/s
20. in an experiment, the factors that affect the time it independent: height of
takes a ball to fall are being tested. During one set of the drop
trials, the height from which the ball is dropped is sys- dependent: time it takes to
tematically increased, and the resulting time it takes fall
the ball to fall is measured. The entire time the same
, PHYS 165 FINAL EXAM
ball is used. Identify the independent, dependent, and controlled: which ball is
controlled variable. used
21. describe the role of experimentation in science experimental data can
lead to laws and theories,
it can also refute currently
accepted laws and theo-
ries. information that has
experimental data sup-
porting argument is more
reliable than information
that does not have sup-
porting experimental data
22. you walk into your bedroom and discover your fa- 1. identify the problem-
vorite gadget broken into pieces in the floor. Use the how did my phone get
6 steps of the scientific method to find out what hap- broken?
pened to the gadget 2.gather information- my
mother, father, and little
brother could have been
in my room today.
3.create a hypotheses-
my brother knocked my
phone off the table and
broke it.
4.expand the hypothesis-
my brother also broke my
IPAD yesterday
5.test the hypotheses- ask
my brother if he broke
these items
6. evaluation of the hy-
1. which statement best describes the scientific method? A systematic process used
to find a solution to a
problem
2. __________ can be thought of collectively as objects in matter
nature
3. a good hypotheses is one that is both _________ and plausible and testable
________
4. when an increase in the independent variable causes direct proportion
the depended variable to increase this is called an
5. which of the following best describes a theory an explanation for pat-
terns in nature that is sup-
ported by scientific evi-
dence and verified mul-
tiple times by various
groups of researchers;
this is a broader explana-
tion of larger portions of
nature
6. which of the following is a measurement of time? the second
7. which of the following is a measurement of electric the ampere
current?
8. which refers to the agreement of several measure- precise
ments among eachother?
9. how many sig figs are in 5,302,000? 4
10. how many sig figs are in 0.05021 kg? 4
, PHYS 165 FINAL EXAM
11. how many sig figs are in 5.20x10^6 m? 3
12. classical physics is an excellent approximation as long matter must be moving at
as three things are true. which of the following state- speeds less than about 1%
ments is one of these three things? of the speed of light
13. besides factors that are unique to the situation, the limitations of the measur-
factors contributing to uncertainty in a measurement ing device, the skill of the
include: person making the mea-
surement.
14. the mass of a block of wood is reported as 548 +/- 21g. 21g/548g x 100%=3.8321
What is the percent uncertainty? ---> 3.8%
15. the time for a drag race is 17.5 s +/- 8.1%. what is the 17.5s x 8.1% = 1.4175 --->
absolute uncertainty? 1.4s
16. convert 0.7km to meters 0.7km x 1000m/1km =
700m
17. convert 7200 mg to grams 7200mg x 1/1000mg =
7.2g
18. a person runs a race in 12,710s. how many minutes is 12,710s x 1min/60s=
this time? 211.8min
19. what do you get when you divide 42.0m by 15.0s? 42.0m / 15.0s= 2.80m/s
20. in an experiment, the factors that affect the time it independent: height of
takes a ball to fall are being tested. During one set of the drop
trials, the height from which the ball is dropped is sys- dependent: time it takes to
tematically increased, and the resulting time it takes fall
the ball to fall is measured. The entire time the same
, PHYS 165 FINAL EXAM
ball is used. Identify the independent, dependent, and controlled: which ball is
controlled variable. used
21. describe the role of experimentation in science experimental data can
lead to laws and theories,
it can also refute currently
accepted laws and theo-
ries. information that has
experimental data sup-
porting argument is more
reliable than information
that does not have sup-
porting experimental data
22. you walk into your bedroom and discover your fa- 1. identify the problem-
vorite gadget broken into pieces in the floor. Use the how did my phone get
6 steps of the scientific method to find out what hap- broken?
pened to the gadget 2.gather information- my
mother, father, and little
brother could have been
in my room today.
3.create a hypotheses-
my brother knocked my
phone off the table and
broke it.
4.expand the hypothesis-
my brother also broke my
IPAD yesterday
5.test the hypotheses- ask
my brother if he broke
these items
6. evaluation of the hy-
