
PROBLEMARIO
Authored by Mariana Tapia
Physics
4th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
1.- Calcular la energía cinética de un automóvil que lleva una velocidad de 20 m/s y tiene una masa de 400 kg
a) 80000 J
a) 160000 J
a) 32000 J
a) 640000 J
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
¿ A qué altura se debe encontrar una mesa de 10 kg para que tenga una energía potencial de 120 J?
a) 1.1 m
a) 1.2 m
a) 3.4 m
a) 1.6 m
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calcular la masa de una esfera si al recibir una fuerza cuya magnitud es de 50 N le produce una aceleración cuya magnitud es de 0.9 cm/s2. Exprese el resultado en Kg.
a) 55.55 kg
b) 0.55 kg
c) 555.55 kg
d) 0.055 kg
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular la masa de un sillón cuyo peso es de una magnitud de 450 N.
a) 44.98 kg
b) 34.67 kg
c) 45.91 kg
d) 46.32 kg
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular la masa de una mesa si la magnitud de la fuerza gravitacional con que se atrae con una silla de 3 kg es de 60x10-11 N y la distancia a la que se encuentran es de 300 cm.
a) 8.92 kg
b) 26.99 kg
c) 28.76 kg
d) 9.38 Kg
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calcular la distancia a la que se encuentran dos elefantes cuyas masas son de 1.2x103 kg y 1.5x103 kg y se atraen con una fuerza gravitacional cuya magnitud es de 4.8x10-6 N?
a) 6.2 m
b) 7.1 m
c) 5 m
d) 9.7 m
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Calculen el trabajo realizado por una fuerza de 200 N que forma un ángulo de 25°, en un bloque, si se empuja una distancia 2 m.
A) 362.52 J
B) 526.14 J
C) 433.71 J
D) 834.20 J
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