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
11
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
17
Volume
The length, width, and height that determines how much space the oject takes up
18
Density
How tightly packed an object's atoms are
19
Displacement
When matter occupies the spot of another object
20
Percent Error
How close to correct your answer is
21
How do you find percent error?
Percent Error = (average of measured value) - (accepted value)/(accepted value) x 100
22
Inverse Relationship
When the x-axis and the y-axis both decrease
23
Cyclic Change
A repeating pattern occurs over and over again
24
Rate of Change
ROC = Change in value/time
25
Direct Relationship
When the x-axis and the y-axis both increase
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