
ENERGÍA MECÁNICA
Authored by ALISSON AGUILAR
Physics
1st - 3rd Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Un cuerpo de 200g se desplaza horizontalmente con una rapidez de 72 km/h. Determine su energía cinética.
20
200
40
400
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
La energía potencial elástica almacenada en un resorte de masa despreciable y constante de rigidez (k=5000 N/m). Cuando está comprimido en 20cm es:
100J
400J
250J
50J
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Al levantar un objeto a una altura de 7.0m se genera una energía potencial de 540.0 J ¿Cuál es la masa de dicho objeto?
5.604 kg
7.864 kg
6.876 kg
7.56 kg
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Un gato de 23 kg se mueve con una velocidad de 4 m/s. Determine el valor de su energía cinética.
120
134
160
184
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Q.
Calcule la EM en (A) y (B) para el bloque de 2kg.
20 y 18 Joules
40 y 20 Joules
100 y 36 Joules
60 y 60 Joules
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
¿Qué tipo de energía se muestra en esta imagen?
energía cinética
energía potencial elástica
energía sonora
energía térmica
7.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
La ecuación para calcular la energía cinética es:
Ec= 1/2⋅m⋅V²
Ec= 1/2⋅g⋅h
Ec= m⋅g⋅h
Ec=1/2⋅K⋅Δl²
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