# Physical Science Exam 1 NAME:

```NAME:
Physical Science Exam 1
Each question is worth 5 points. You may distribute your five points however you wish. For
example, “Question 1-5” will occupy the first five lines of your scantron, “Question 6-10” will
occupy the next five lines of your scantron.
Question 1-5. The discipline concerned with the study of the universe, which is the totality of all
matter, energy, space, and time is best described as
A.
B.
C.
D.
E.
Physics
Chemistry
Astronomy
Meteorology
Geology
Question 6-10. _______ is the acceptance of an idea, theory, or explanation only on the
evidence of a higher authority.
A.
B.
C.
D.
E.
Epistemology
Science
Fideism
Astronomy
Both A &amp; C
Question 11-15. Which of the following is an example of a pseudoscience?
A.
B.
C.
D.
E.
The study of the paranormal
Astrology
The field of searching for UFOs
Intelligent Design
All of the above
Question 16-20. Which property of mathematics makes it useful for science?
A.
B.
C.
D.
E.
Difficulty
Epistemology
Fideism
Isomorphism
None of the above
Question 21-25. Who is attributed with the development of Calculus?
A.
B.
C.
D.
E.
Leibniz
Galileo
Einstein
Brahe
None of these
Question 26-30. The SI standard of time is based on:
A.
B.
C.
D.
E.
the daily rotation of the earth
the frequency of light emitted by Kr86
the yearly revolution of the earth about the sun
a precision pendulum clock
none of these
Question 31-35. One kilogram is roughly equal to the weight of a _____.
A.
B.
C.
D.
E.
Pint of milk
Baseball
Honeybee
Red Blood Cell
Human
Question 36-40. The British base unit for mass is
A.
B.
C.
D.
E.
Kilogram
Gram
Newton
Slug
Pound
Question 41-45. Which of the following associations is NOT correct?
A.
B.
C.
D.
E.
100 meters = 1 kilometer
12.4 hectoliters = 1.24 Kiloliters
1.0 grams/cm3
= water density
-4
4 x 10
= 0.0004
1 kilometer = 0.62 mile
Question 46-50. Give an order-of-magnitude estimate for the height of a human.
A.
B.
C.
D.
E.
0.1 meters
1 meter
1.8 meters
3.1 meters
10 meters
Question 51-55. A car is travelling 35 miles per hour. What is the car’s speed in feet per
second? (NOTE: 1 mile = 1760 yards, 1 yard = 3 feet)
A.
B.
C.
D.
E.
23.8 ft/s
17.1 ft/s
35.0 ft/s
0.019 ft/s
51.3 ft/s
Question 56-60. Suppose A = BC, where A has the dimension M/L (mass/length) and C has the
dimension L/T (length/time). Then B has the dimension:
A.
B.
C.
D.
E.
T/M
L2/TM
TM/L2
L2T/M
M/L2T
Question 61-65. An equation for distance (measured in meters) is:
d = at +bt2
where t is time (measured in seconds) and a and b are constants. What must be the units of a
and b in order for the equation to be dimensionally correct?
A.
B.
C.
D.
E.
a = m/s ; b = s2/m
a = m/s2 ; b = m/s
a = m/s ; b =m/s
a = m/s ; b = m/s2
a = m/s ; b = s2/m2
Question 66-70. The _________ variable is plotted on the x-axis and the _________ variable is
plotted on the y-axis.
A.
B.
C.
D.
E.
controlled ; uncontrolled
controlled ; dependent
independent ; dependent
independent ; uncontrolled
dependent ; independent
Question 71-75. Which of the following graph represents an inversely proportional
relationship.
A.
B.
C.
E. None of the above
Question 76-80. Which of the following represents the slope of a line?
A.
B.
C.
D.
E.
rise/run
(x2 – x1)/(y2 - y1)
∆y/∆x
Both A &amp; B
Both A &amp; C
D.
Use the following graph to answer questions 81-100
10
9
Position (Meters)
8
A
B
7
6
5
C
4
3
2
D
1
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Time (Seconds)
Question 81-85. Referring to the above graph, which particle(s) would represent a “nonlinear”
relationship?
A.
B.
C.
D.
E.
A
B
C
D
Both B &amp; D
Question 86-90. Referring to the above graph, what is the slope of line “C”?
A.
B.
C.
D.
E.
3.5 m/s
1 m/s
0 m/s
-1 m/s
0.29 m/s
Question 91-95. Referring to the above graph, which object(s) is traveling with a constant nonzero speed?
A.
B.
C.
D.
E.
A
B
C
B&amp;D
A&amp;C
Question 96-100. Which particle is traveling with a non-constant speed (e.g. accelerating)?
(HINT: Which particle’s slope changes from one second to the next?)
A.
B.
C.
D.
E.
A
B
C
D
E
NAME:
The following data was collected on an unknown substance:
Volume (cm3) Mass (Gram)
X-Coordinate Y-Coordinate
0.1
1.134
0.2
2
0.3
4
0.4
4.536
0.5
5.7
0.6
6.5
0.7
7.85
0.8
8.95
0.9
8.5
1
10.5
1.1
12.474
1.2
15
1.3
15.5
1.4
16.1
1.5
18.5
1.6
18.144
1.7
19.15
1.8
20.412
1.9
21.75
2
22.68
In the grid provided below graph the data points (5 points):
NAME:
2.5
Mass (gr)
2
1.5
1
0.5
0
0
5
10
15
20
Volume (cm3)
On the graph draw the best fit line? (2 points)
In the space below calculate the slope of the best fit line, make sure to show all your work. (5
points)
25
What quantity does this slope represent? (2 points)
Given the following table, which material do you believe this
sample represents? (2 points)
Material
Gold
Platinum
Bronze