MEASUREMENTS EXPERIMENT THEORY

 

 

The density of an object is defined to be the ratio of its mass and volume which as an
equation becomes
𝜌𝜌 = π‘šπ‘š
𝑉𝑉
The volume of a cylinder is defined to be
𝑉𝑉 = πœ‹πœ‹π·π·2β„Ž
4
where 𝐷𝐷 is the cylinder’s diameter and β„Ž is the cylinder’s height. The volume of a cube is defined
to be
𝑉𝑉 = π‘™π‘™π‘™π‘™β„Ž
where 𝑙𝑙 is the cube’s length, 𝑀𝑀 is the cube’s width, and β„Ž is the cube’s height. The volume of a
sphere is defined to be
𝑉𝑉 = πœ‹πœ‹π·π·3
6
where 𝐷𝐷 is the sphere’s diameter.
A ruler can measure in both inches and centimeters, but we will use exclusively use its
centimeters side. The smallest scale division on the ruler is one-tenth of a centimeter, such that,
the whole number of tenths may be accurately read, or resolved, directly from the ruler.
However, it is possible to estimate the fraction of this smallest scale division. The uncertainty
involved this estimation is quantified by β€œsplitting the difference” in its resolution. As seen below
in FIGURE 1, the black-colored object’s length is formally expressed as (41.64 Β± 0.05) 𝑐𝑐𝑐𝑐. The
digits 41.6 are directly resolved from the ruler, while the 4 in the hundredths place is an estimate
by the experimenter since it is not directly read from the ruler’s scale. The Β± 0.05 portion of the
measurement represents the uncertainty in the estimation from this ruler.
FIGURE 1 – Using the black markings on the ruler, this object’s
length is seen to be between 41.6 𝑐𝑐𝑐𝑐 and 41.7 𝑐𝑐𝑐𝑐.
PROCEDURE:
1. Record the following measurements for the specified object:
β€’ Cube
i. Mass
ii. Length
iii. Width
iv. Height
β€’ Solid cylinder
i. Mass
ii. Height
iii. Diameter
β€’ Sphere
i. Mass
ii. Diameter
DATA ANALYSIS:
1. Show the following calculations:
β€’ Cube
i. Density
ii. Density Percent Error
β€’ Solid Cylinder
i. Density
β€’ Sphere
i. Density
DATA TABLE: CUBE
MASS
π‘šπ‘š
( 𝑔𝑔 )
LENGTH
𝑙𝑙
( 𝑐𝑐𝑐𝑐 )
WIDTH
𝑀𝑀
( 𝑐𝑐𝑐𝑐 )
HEIGHT
β„Ž
( 𝑐𝑐𝑐𝑐 )
DATA TABLE: SOLID CYLINDER
MASS
π‘šπ‘š
( 𝑔𝑔 )
HEIGHT
β„Ž
( 𝑐𝑐𝑐𝑐 )
DIAMETER
𝐷𝐷
( 𝑐𝑐𝑐𝑐 )
DATA TABLE: SPHERE
MASS
π‘šπ‘š
( 𝑔𝑔 )
DIAMETER
𝐷𝐷
( 𝑐𝑐𝑐𝑐 )
Cube
Density:
𝜌𝜌 = π‘šπ‘š
π‘™π‘™π‘™π‘™β„Ž
=
=
Density Percent Error:
𝑃𝑃𝑃𝑃 = |𝐸𝐸 βˆ’ 𝐴𝐴|
𝐴𝐴
Γ— 100%

 

Sample Solution

The Progession of Poems Adrienne Rich and Paulo Freire share a common theme in transition and society. Both are talking about the transformation of society and the relationship people have in writing. Freire talked about the way teachers teach the students, and there is no contradiction as they are sitting there waiting for information. Rich uses a similar theory in her essay “When we die” where she talks about society and how it is suppressed. Both have similar theories, but they have different ways to express their arguments. “When doing mechanical language training in a mechanical way, students can train like well-trained parrots.When stimulating, students can repeat the whole thoroughly. :: ^ In addition to the received teaching materials, students must take the first lesson to apply what they remember or what they are doing to the communication context designed by the classroom group. In the mid-seventies This approach was proposed due to dissatisfaction with structural and behavioral language teaching methods, which is currently widely used in textbooks not only in the west but also in our Libya school training centers. In addition to secondary school textbooks, most petroleum departments and bank training centers apply this method to English classes. Talk about playing that language! This is a wonderful poem that teaches students the flexibility of language. The interesting thing about this poem is that students can understand what is going on, even if there are meaningless words like “vorpal” or “uffish”. A monster named “bandersnatch” captures the imagination of the student. Lewis Carroll uses portmanteaus to create new words – this is an interesting challenge to have your own students try. This is a poem that I like to make my students bit me. I handed it to them and waited. My student sat for a while, and I will assign a burn about it. A few minutes later, the students showed a reaction “Oh”. Candlelight is a rather annoying symbol in literature, but I always like Edna St. Vincent Mirei to overturn our expectations for this poem. The students said they were proud of themselves, sadness, full of hope, and a little lost. I like 4 rows of packaging very much! One poem per day: National Poetry Poems by 30 junior high school students at month (or other time)

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