
EVALUACION CF
Authored by Dalton Colorado
Physics
8th Grade
Used 4+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La palanca es una máquina simple capaz de…
Reducir la fuerza aplicada en un punto de apoyo
Modificar o generar una fuerza para levantar objetos
Elevar un objeto pesado con la ayuda de una cuerda
Desplazar objetos sobre un plano
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. ¿Cuál es el máximo peso W que se podría levantar haciendo uso de la palanca de la figura?
160 N
240 N
400 N
25 N
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1. ¿Qué tipo de palanca se representa en la figura?
1º GRADO
2º GRADO
3º GRADO
4º GRADO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿A qué distancia debe ubicarse la carga de 5000 N, para que la grúa que tiene un contrapeso de 10.000 N a 5 metros de distancia, permanezca en equilibrio?
5 m
12 m
10 m
20 m
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si utilizo un polipasto compuesto de una polea fija y una polea móvil para levantar un peso de 100 N, la fuerza mínima que debo aplicar para subir dicho peso será?
33,33 N
100 N
50 N
25 N
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un polipasto compuesto por 3 poleas fijas y 3 poleas móviles es:
Un polipasto simple
Un polipasto factorial
Un polipasto potencial
Un polipasto especial
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En un polipasto conformado por 4 poleas fijas y 4 poleas móviles, la ventaja mecánica es igual a:
6
4
3
8
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