Introduction to Science. Conceptual Physics. Nature of Science. Science views the universe as regular and predictable, not random and chaotic is about discovering explanations on how the universe works based on verifiable and testable evidence
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Qualitativestatements describe observations seen in the universe.
Quantitativestatements are mathematical equations that describe scientific theories and laws.Qualitative vs. Quantitative
Now that’s just silly!
pattern: a x 10b
a is thecoefficient, (AKA the mantissa) b is theexponent
The mantissa must be 1 or greater and less than 10 (digits 1–9).
Theexponentis determined by how many places the decimal must be moved when converting into scientific notation.
The Earth’s mass is about 5,973,600,000,000,000,000,000,000 kg
In scientific notation it is written 5.9736 x 1024 kgScientific Notation
Numerator and denominator represent the same thing in two different units
E.g. 12 in ⁄ 1 ft; 1 m ⁄ 3.3 ft
Converting to a larger unit results in a smaller number (e.g. 234 m = 0.234 km)
1. Start with what you are given and put it over 1
2. Multiply by the conversion factor to cancel out the units you begin with and work toward the units you wantUnit Conversion
y2-y1 / x2-x1
Rachel: 11.32 g/ml, 11.35 g/ml, 11.33 g/mlDaniel: 11.43 g/ml, 11.44 g/ml, 11.42 g/mlRobert: 11.55 g/ml, 11.34 g/ml, 11.04 g/mlThe actual density of lead is 11.34 g/ml.Which person’s measurements were the most accurate? Which were precise? Which were both accurate and precise?