Sig Figs
5,000,000
1 sig fig
100 cm = _______ m
1 m
What variable is placed on the y-axis?
Dependent Variable
First step in the scientific method.
Problem / Question
Convert to Scientific Notation:
6,520,000,000
6.52 x 10^9
How many sig figs:
8,962
4 sig figs
5000 L = _________ kL
5 kL
What variable is placed on the x-axis?
Independent Variable
Explain qualitative data.
Data that is observed, gathered using your 5 senses.
Convert to standard form:
7.43 x 10^-8
0.0000000743
How many sig figs:
0.0023
2 sig figs
0.25 m = _______ mm
250 mm
What is the difference between a scientific theory and scientific law?
A theory is just an idea that is accepted. A Law has been tested and proved correct over and over again.
What is the correct format for a hypothesis?
"If..., then..." statement.
Explain how the following statement could be true:
"That measure is precise, but still not very accurate."
It is possible for data to be close in measurement, but not close to the accepted value.
How many sig figs
1,006
4 sig figs
10 cg = ________ hg
0.0010 hg
What two branches of science make up Physical Science?
Physics / Chemistry
Describe quantitative data.
Data that is measured; involves numbers.
What is the base unit for
Distance
Volume
Mass
Distance = Meter
Volume = Liter
Mass = Gram
How many sig figs:
0.006700230
7 sig figs
6,400,200 mg = _________ kg
6.400200 kg
"No experiment is a failure"
What is the difference between accuracy and precision?
Accuracy is the measured value being close to the accepted value. Precision is the agreement between measurements.
Answer with correct sig figs:
42.1 x 2.6851
113