Review
Basics:
Physics: Science that deals with discovering the phenomena of matter and energy, and the laws that govern them.
Scientific Method: series of steps on which underpins the development of science.
Steps: 1) observation, 2) Formulation Hypothesis 3) Testing hypothesis 4) scientific law.
empirical law: Law supported by scientific observations and untestable.
scientific Law: Law supported by scientific observations (measurements) and can be checked.
Measurement: Dar quantitative value to an extent determined by scale.
fundamental magnitudes: Magnitudes not depend on other quantities.
; ; [Weight, length, time, temperature, amount of matter, electric charge, light]
derived magnitudes: Magnitudes formed from other quantities (basic or fundamental)
eg, [speed, strength, acceleration, energy, power]
International System Units:
| Mass | | Time | Temperature | Amount of substance | Electric charge | luminosity |
| kilogram (kg) | Metro ( m) | seconds (s) | Kelvin (K) | Mol (mole) | Coulomb (c) | Candela (ca) |
Prefijos pontencias de base y 10:
| EXA (E) | Map (P) | Tera (T) | Giga (G) | Mega (M) | Kilo (K) | Hecto (H) | Deca (D) | So (d) | Cents (c) | Mili (m) | Micro (μ) | Nano (n) | Pico ( p) | Fempto (f) | Act (a) |
| 10 18 | 10 15 | 10 12 | 10 9 | 10 6 | 10 3 | 10 2 | 10 | 10 -1 | 10 -2 | 10 -3 | 10 -6 | 10 -9 | 10 -12 | 10 -15 | 10 -18 |
Direct measurement: Get the measure directly the measuring instrument.
Indirect measurement: Get measured by mathematical calculations.
graphical interpolation: Get a value from the mathematical function that defines the graph.
Extrapolation graph: Get values \u200b\u200bfrom the graph drawing.
Magnitude Scale: C antide numbers, does not depend on a reference system, are positive quantities.
Vector Magnitude: Amount consists of magnitude and direction depends on a reference system.
mathematical function: rule of correspondence between 2 sets of numbers. This rule is based on mathematical operations.
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