POLEAS
10th Grade
•16 Qs
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POLEAS
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Hard
Melba Cuervo
Used 228+ times
FREE Resource
Enhance your content in a minute
16 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Una polea fija...
tiene ventaja mecánica
reduce el esfuerzo que tenemos que hacer para levantar objetos
no tiene ventaja mecánica
cambia la dirección de la fuerza y permite aprovechar nuestro propio peso para hacer la fuerza
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una polea móvil....
para levantar la carga 3 m tienes que coger 3 m de cuerda
para levantar la carga 3 m tienes que coger la mitad de la cuerda
para levantar la carga 3 m tienes que coger 6 m de cuerda
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En este polipasto reducimos la fuerza que tenemos que hacer ...
a la mitad del peso de la carga
a la sexta parte del peso de la carga
a la cuarta parte del peso de la carga
a 20 N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Queremos levantar un peso de 4800 kg, ¿qué fuerza tenemos que hacer si usamos este polipasto para reducir el esfuerzo?
800 kg
600 kg
400 kg
480 kg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Usamos este polipasto para elevar una carga 3 m, ¿cuántos metros de cuerda he de coger?
18 m
6 m
24 m
12 m
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Con este polipasto quiero elevar una carga 5 m, ¿cuántos metros de cuerda he de coger?
30 m
10 m
20 m
40 m
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué fuerza debo hacer para elevar el objeto de P=30 kg?
10 kg
15 kg
20 kg
30 kg
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