
Prueba de Ciencias Naturales Octavo Grado.

Quiz
•
Biology, Science
•
8th Grade
•
Hard
Clarissa Cortes
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Verdadero
Falso
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La energía potencial la calculamos con la siguiente formula:
U: mgh
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Cuál es la energía potencial gravitacional de un martillo de 1.5 Kg cuando se encuentra situado a una altura de 2m sobre el suelo?
U: 29.4J
U: 30.6 J
U: 36.2 J
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La formula para calcular la energía mecánica es:
E: K+U
P: W/t
U: mgh
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Una grúa ejerce una fuerza paralela y constante de 3000N sobre un auto y lo desplaza 15m a través de la carretera.¿ Que trabajo realizo la grúa?
w: 45,000 J
w: 19, 680 J
W: 32,000 J
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Tipos de maquinas que existen:
Simples
Compuestas
Poleas
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Son tipos de maquina simple:
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