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GENERAL PHYSICAL SCIENCE
ANSWER SHEET – MEASUREMENTS & PENDULUM
NAME: Alyx Edwards
DATE: 01/19/2024
The following procedures are to be completed by you as an individual.
Procedure #1: Metric Measurements
Linear Measurement (1/2 point for each row)
Object
Kilometer
Meters
Centimeters
Millimeters
10 inch line (
cm
)
0.000254
0.254
25.4
254
Notebook paper width
(shorter measurement) (
cm
)
0.0002159
0.2159
21.59
215.9
Penny thickness (
mm
)
1.52e-6
0.00152
0.152
1.52
Credit card length
(longer measurement) (
cm
)
8.56e-5
0.0856
8.56
85.6
Your height (
m
)
0.001651
1.651
165.1
1651
(1/2 point for each row)
Body Part
Kilometer
Meters
Centimeters
Millimeters
Wrist (
cm
)
0.000127
0.127
12.7
127
Neck (
cm
)
0.0003048
0.3048
30.48
304.8
Waist (
m
)
0.00074676
0.74676
74.676
746.76
1 | Page
GENERAL PHYSICAL SCIENCE
ANSWER SHEET – MEASUREMENTS & PENDULUM
Procedure #2: Unit Conversions
Show all work in the solution box.
Use boldface
for the answer.
(1 point for each problem)
Problem
Solution with Work Included
1. How many cm. Are there in 3.6 in.?
9.144
2. 6.1 liters equals how many ml.?
6100
3. How many cm. Are there in 7.2 m.?
720
4. 5.6 m. equals how many mm.?
5600
5. 1.02 liters equals how many kL.?
0.00102
6. 10.1 pounds equals how many kg?
4.581283
7. How many km. are there in 488 mi.?
785.36
8. How many seconds are in
5 days?
432000
9. Convert 8 mi/h into m/s.
3.57632
10. Convert 30 km/h into m/s. 8.33333
11. 2 liters equals how many
ml?
2000
12. Convert 7 ft to mm.
2133.6
13. How many inches are there in 4.5 cm?
1.77165
14. Convert 45 km into meters.
45000
15. Convert 8.9 ft into meters.
2.667
2 | Page
GENERAL PHYSICAL SCIENCE
ANSWER SHEET – MEASUREMENTS & PENDULUM
Procedure #3:
In each of the comparisons below, circle the pendulum that you think will have a shorter
period.
Long pendulum vs. Short pendulum
Heavy pendulum vs. Light pendulum
Pendulum on Earth
vs.
Pendulum on Moon
Pendulum with a large arc
vs. Pendulum with a small arc
Gizmo Warm-up
On the Gizmo, check that all variables are set to their original values: m
= 0.5 kg, L
= 2.0 m, g
= 9.8 m/s
2
, and θ
= 10°. (1/2 POINT FOR 1 & 2)
1.
A full “swing” of the pendulum is one complete back-and-forth movement. Select the TABLE tab. Click Mark time
each time the pendulum touches the arrow. Mark 10 times. What values do you get for the period of the pendulum? Time 1
Time 2
Time 3
Time 4
Time 5
Time 6
Time 7
Time 8
Time 9
Time 10
0.00
4.20
2.88
2.86
2.55
5.73
5.85
2.88
2.97
2.76
2.
What is the mean
of these values? (Note: To find the mean, add up the values and divide by the number of values, or 10.)
3.268
Activity A – Factors Affecting Period
Question: Which factors affect the period of a pendulum?
(1/2 POINT FOR A, B & C)
1.
Measure
: Click Mark time
. Carefully count 10 swings of the pendulum and click Mark time again at the conclusion of the last swing. A.
What is the time for 10 swings? 28.61
3 | Page
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Related Questions
A Foucault pendulum is a simple device used to observe the rotation of the Earth.
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Pre-Lab Unit 1 Pendulum Week 2
AA
1 of 2
PRE-LAB Unit 1 Pendulum for Pros Week 2
Consider four scenarios where measurements of two quantities are made. Curves
displaying the distribution associated with each measurement and its uncertainty are
displayed below for each of the four scenarios.
1.
Scenario 1
Scenario 2
X = 20 8 = 5
x = 70 8 = 15
x = 20 |8 = 5
x = 70 8 = 5
20
40
60
80
100
20
40
60
80
100
Scenario 3
Scenario 4
x = 35 8=5 :
X = 35 8 =10
X= 45 8 = 10
x= 45 8 = 5
20
40
60
80
100
20
40
60
80
100
Rank the scenarios on the basis of how confident you are that the two measurements are
different. On what basis was your ranking made? What feature(s) of the two curves was
assessed to arrive at your ranking?
2.
Ten measurements are taken resulting in a standard deviation o of 0.10 s.
а.
Determine the uncertainty in the measurement.
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0 5 10
40
35
30
25
20
Answer:
5 10
40
35
30
25
20
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about his measurement?
A. precise and accurate.
B.precise but not accurate
C. accurate but not precise
D. not accurate and not precise
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Plot a graph on a milimetric paper by hand using the following data.
х (ст)
3.1
4.2
5.8
7.1
8.5
9.3
t (sec)
0.5
1.0
1.5
2.0
2.5
3.0
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Analyze the data in the table, then answer the questions below.
Measurement (g)
True value (g)
Absolute error (g)
%Relative error
10.545
10.544
0.001
0.0094
0.105
0.104
0.001
0.96
1) Compare the absolute error and % relative error of the two measurements.
2) Why is the relative error a more useful quantity than the absolute error based on the table above?
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1. Analyze sets of data and decide whether the measurements are precise
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2. Calculate percent error.
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SET A
SET B
2. 240 g/cm
2.700 g/cm3
2.690 g/cm3
2.705 g/cm3
2.450 g/cm3
2.703 g/cm³
2. 150 g/cm
2.701 g/cm³
1. Calculate the average value for each set of density.
2. Calculate the % error for each set of values.
3. Compare the average value for each set with the accepted value:
Which student's data is more accurate?
Which student's data is more precise?
4. Compare the percentage error for each set:
Which student's data is more accurate?
Which student's data is more precise?
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the following equation refers to V-pendulum experiment
T4 = (4x Lkl g?)-(8 nL/g² d, where:
%3D
L: length of the string (2 meters).
T: pendulum periodic time
d: distance between rods
k: pendulum constant
g: gravitational acceleration
Given that the slope of the graph (T d) = -14.2 s/m, and y-intercept =13.5 s.
Find the value for K:
O 2.10 m
O 19.1 m
O 1.91 m
2.00 m
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Oliver and Robin have different stride lengths and want to compare them. Oliver uses a
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takes.
Number of Distance
(feet)
Strides
2
7
4
14
21
Robin draws a graph to represent the distance he travels with respect to the number of
strides he takes.
y
10
9
8
2
1
2
3
4
6
strides
7
8
10
distance (feet)
LO
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Copper
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