2-1 What Is Density Lesson Review Answer Key
Inquiry 2.one: Measuring the Mass and Density of Water
Focus Question: What does density measure? What tools, units of measure, and formulas are used to calculate and report mass, book, and density?
Tabular array 1: Computing Mass
Volume of water (cm3) Mass of Graduated Cylinder (g) Mass of Water (chiliad) Mass of 1cm3 of Water (thousand/cmiii)
Mass of Graduated Cylinder & Water (g) 25 131.ii 154.three 23.1 0.924 50 131.2 179.5 48.3 0.966
Empty 25 ml Water
Analysis Questions
ane) Does irresolute the volume of water modify the mass of 1 cm3 of water?
The mass of 1 cubic centimeter of h2o remains the same, regardless of the volume of h2o measured.
two) Does changing the mass change the density of 1 cmthree of water?
The density of 1 cubic centimeter of water remains the same, regardless of the mass of water measured.
l ml Water
three) What is the density of water in grams per cubic centimeter?
Mass per unit of measurement volume is chosen "density" and can be measured in grams per cubic centimeter. The density of water is well-nigh 1 thousand/cm3 with small variations depending on its temperature.
4) Does changing the mass or book of h2o change its density?
No, changing the mass or volume of h2o does non change its density.
5) Why is density a characteristic property?
Density is a characteristic property of water because information technology has constant value, contained of mass or volume, and so long equally temperature and pressure level remain the same.
Research 2.two: Comparing the Densities of Different Substances
Focus Question: Are the densities of different substances the same or different?
Tabular array 1: Comparison Different Objects
(cm) (cm) (cm) (cm3) (g) (thousand/five)
Substance Length(l)
Width(w)
Pinnacle (h)
Volume (v)
Mass (k)
Mass of one cm3
(density in g/cm3)
Transparent Plastic Block two 2 5 twenty 23.viii i.19 Wax Cake 5 5 two l 41.4 .828 Aluminum Cake four two 1 8 23.2 2.ix White Plastic Block v 5 ii fifty 47.i .942
1) Are the densities of different substances the aforementioned or dissimilar?
Each substance has a different density, which is a characteristic holding.
ii) How could this information be used to identify the substances from which an object is made?
Density can be described as one characteristic belongings of a substance. Given a listing of known densities, ane could identify the substance from which an object is made by calculating its density.
Inquiry ii.3: Measuring the Density of Irregular Objects
Focus Question: How can you find the density of irregular objects?
To find the density of irregular objects one can employ deportation to discover the volume of the object. Then, you can discover the mass using a scale. Finally, calculate the density by dividing the mass past the book.
Table 1: Density of Irregular Objects
Objects Mass (grand) Volume of Water
(cm3) Volume of Water & Object
(cm3)Volume of Object
(cm3) Mass of 1 cm3
(density in yard/cm3)
(k/five)
Cylinder 56.7 twoscore 47 7 8.1 Bolt 58.8 77 85 8 7.35 Spacer 6.five xxx 35 v 1.3
1) Are any of the blocks from Inquiry 2.2 or objects from this inquiry made from the aforementioned substances? What evidence do yous have from your answer?
The substances accept different densities; therefore, they must be dissimilar substances.
ii) How do the densities of the objects from this inquiry compare with the density of water?
They are all more dense than water. Water has a density of about ane g/cm3, copper near 8.1 g/cm 3 , steel is nigh vii.4 thousand/cm iii , and nylon is a bit more than than 1 k/cm 3 .
Lesson 2 Vocabulary
mass – the amount of affair in an object. Mass is measured in grams (g) or kilograms (kg).
weight – a mensurate of the forcefulness of gravity acting on an object and is measured in Newton's
density – the mass per unit volume of a substance. d= g/v (density equals mass divided by volume)
characteristic belongings – is a holding that is independent of mass, book, and shape. It refers to substances, not objects.
volume – the amount of infinite occupied past matter
residue –used to measure mass
graduated cylinder – used to measure out volume of a liquid
Source: https://sites.google.com/a/cl.fcasd.edu/mr-wagner/properties-of-matter/determining-density
0 Response to "2-1 What Is Density Lesson Review Answer Key"
Post a Comment