seleccion1, tema 2, CONVERSION DE UNIDADES
Quiz
•
Chemistry
•
1st Grade
•
Hard
jorge barrera
Used 14+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. La presión que soporta cierto material es de 3 0 0 0 0 0 0 pascales, expresar dicha expresión en mega pascales.
a) 3,00 MPa
30 MPa
300MPa
0,3 MPa
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Una torre de control de un aeropuerto transmite ondas cuya frecuencia es de 150 MHz. ¿Cuál es su longitud de onda en metros?
f=c/lamda
c= 3x108 m/s
2
a) 0,126
a) 1,47
a) 29,4
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1. Determinar la longitud de onda de una R.E.M. que se irradia con una frecuencia de un 1015 Hz:
1A = 10-10 m
a) 3500 Angstrom
a) 3000 Angstrom
2000 Angstrom
a) 1500 Angstrom
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1. Convertir 32000 mg a kg
a) 320 kg
0,032 kg
0,32kg
3,2 kg
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1. Hallar la energía de la radiación violeta cuya longitud de onda es 4000 Angstrom
h=6,63x10-34 J.s
E = h.C/lamda
a) 3,6 x10-19 Joules
a) 9,4 x10-19 Joules
a) 7,5 x10-19 Joules
a) 4,9x10-19 Joules
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. El padre de la química moderna es:……………
lavoissier
proust
dalton
thomson
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. Una de las propiedades físicas particulares de la materia útil para diferenciar una sustancia de otra, es la densidad. Determine la densidad de un metal, en g/mL., cuando al introducir 50 g del solido en un recipiente graduado que contiene 50 ml de agua, el volumen de agua aumenta a 75 mL.
1,5
2
2,5
2,05
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