Density Review
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1
Density Formula
D = M/V
2
What is used to make an observation?
The 5 Senses
3
Inference
Hypothis or educated guess
4
2 Examples of classification system
Types of rocks and types of stars
5
A tool used for mass
Scale, triple beam balance
6
If an object is heated, what happens to the mass?
Nothing! The gravitational pull on an object could change the weight, but not the mass
7
A tool used to measure volume
A ruler
8
Volume Formula
V=LW
9
Tools used to measure the volume of an irregular object
Graduated cylinder, water
10
When an object is heated, it (expands/compacts)
Expands
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When an object is heated, it becomes (more/less) dense
Less
12
When an object is cooled, it (expands/contracts)
Contracts
13
When an object is cooled, it becomes (more/less) dense
More
14
What happens to the density of an object when it is split into smaller pieces?
Stays the same
15
When is water most dense?
Liquid water (3.98°C)
16
Mass
The amount of matter an object or substance contains
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Volume
The length, width, and height that determines how much space the oject takes up
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Density
How tightly packed an object's atoms are
19
Displacement
When matter occupies the spot of another object
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Percent Error
How close to correct your answer is
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How do you find percent error?
Percent Error = (average of measured value) - (accepted value)/(accepted value) x 100
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Inverse Relationship
When the x-axis and the y-axis both decrease
23
Cyclic Change
A repeating pattern occurs over and over again
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Rate of Change
ROC = Change in value/time
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Direct Relationship
When the x-axis and the y-axis both increase
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