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Review of unit 1 - Scientific activity
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Density, is it a fundamental magnitude or a derivative magnitude?
Derivative magnitude
Time, is it a fundamental magnitude or a derivative magnitude?
fundamental magnitude
Hour, is it magnitude or a unit?
Unit
To which stage of the scientific method does this sentence refer?: in this stage, you think about a response that could describe a given fact, but it is still unconfirmed by experience.
Formulation of the hypothesis
What is the name of this laboratory instrument?
Scale / balanza
What is the name of this laboratory instrument?
Graduated cylinder / Probeta
What is the name of this laboratory instrument?
Beaker / vaso de precipitados
What is the name of this laboratory instrument?
Erlenmeyer flask / matraz erlenmeyer
What does the following hazard pictogram mean?
Gas under pressure / Gas bajo presiĂłn
What does the following hazard pictogram mean?
Corrosive / corrosivo
What does the following hazard pictogram mean?
Dangerous to the environment / peligroso para el medio ambiente
What does the following hazard pictogram mean?
Flammable / inflamable
What is the SI unit of temperature and its symbol?
Kelvin, K
Change the following unit using conversion factors: 4h to min
240 min
Change the following unit using conversion factors: 9000 dm3 to dam3
0.009 dam3
Does the equation F=m·a correspond to a scientific law or a scientific theory?
Scientific law --> Newton's laws
To which stage of the scientific method does this sentence refer?: In this step, scientists design a procedure to see if their idea or prediction is correct.
Experimentation
Express in International System unit using the conversion factors: 1300 mm2
0.0013 m2
Express in scientific notation the following number: 0.0000268
2.68 · 10^-5 / two point sixty eight times ten to the power of minus five
What is a graduated cylinder used for?
To measure volumes / Para medir volĂşmenes
Speed, is it a fundamental magnitude or a derivative magnitude?
Derivative magnitude
What is the SI unit of time and its symbol?
second - s
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