Physical Science Midterm
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16 Terms
What is the difference between a theory and a scientific law?
A theory is a possible explanation for observations, while a scientific law describes a pattern without explaining why things happen.
List the steps of the scientific method.
Problem, Hypothesis, Research, Materials List, Experiment Design, Independent Variable, Dependent Variable, Data Collection, Data Analysis, and Conclusion.
What is the SI system?
The SI system is the improved version of the metric system based on multiples of ten and includes the meter.
What is the SI base unit for length?
Meter (m)
What is the SI base unit for mass?
Kilogram (kg)
What is the SI base unit for time?
Second (s)
What is the SI base unit for electric current?
Ampere (A)
What is the SI base unit for temperature?
Kelvin (K)
What is the SI base unit for amount of substance?
Mole (mol)
What is the SI base unit for intensity of light?
Candela (cd)
What does the prefix 'kilo-' represent in the SI system?
1,000
What does the prefix 'deci-' represent in the SI system?
0.1
What does the prefix 'centi-' represent in the SI system?
0.01
What does the prefix 'milli-' represent in the SI system?
0.001
What does the prefix 'micro-' represent in the SI system?
0.000 001
What does the prefix 'nano-' represent in the SI system?
0.000 000 001