SEGUNDO - FISICA - RETRO. MENSUAL
Quiz
•
Physics
•
KG
•
Practice Problem
•
Medium
HENRY MORALES
Used 2+ times
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6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Una esfera de 4 kg se encuentra a 15m respecto del nivel de referencia. Determine la energía potencial gravitatoria que posee. (g=10 m/𝑠2)
200 J
600 J
400 J
500 J
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Se muestra una caja de 15kg suspendida de una cuerda de 5m de longitud. Determine la energía potencial gravitatoria de la caja respecto del piso. (g=10 m/s2)
450 J
400 J
350 J
500 J
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A 50 g de agua, a 20°C, se le entrega 1000 cal en forma de calor, determine su temperatura final. (Ceagua=1 cal/(g°C))
25º C
40º C
45º C
35º C
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determine la variación de temperatura de 300 g de agua que absorbe una cantidad de calor igual a 900 cal. (Ceagua=1 cal/(g°C))
3º C
4º C
2º C
5º C
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Debido al frotamiento de una esferita, esta gana 1019 electrones. Determine la cantidad de carga que presenta.
( |qe- | = 1,6x10-19 C )
-1,6 C
1,6 C
-3,2 C
3,2 C
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Al final del frotamiento de una barra, esta presenta 8x1020 protones y 3x1020 electrones. Determine la cantidad de carga que presenta la barra.
(|q(e-) | = 1,6x10-19 C)
+80 C
-80 C
+40 C
-60 C
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