EL UNIVERSO Y LA GRAVEDAD
Quiz
•
Physics, Science
•
8th - 9th Grade
•
Medium
Andrea Klett
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Si un caballo de carreras corre a galope a una velocidad de 65 km/h, ¿Cuánto tiempo tardará en llegar a la meta en una carrera de 1500 m?
23 s
130 s
50 s
83 s
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un motorista que se desplaza a 45 km/h ve un obstáculo en la calzada y frena en 10 s. ¿Qué aceleración han imprimido los frenos?
a = - 1,25 m/s2
a = - 4,5 m/s2
a = 4,5 m/s2
a = 1,25 m/s2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Elige la descripción CORRECTA del movimiento representado en la imagen.
1.MRUA - 2.MRUA - 3.MRU - 4.MRU - 5.MRUA
1.MRUA - 2.MRU - 3.MRUA - 4.MRU - 5.MRUA
1.MRUA - 2.MRUA - 3.MRUA - 4.MRU - 5.MRU
1.MRU - 2.MRUA - 3.MRU - 4.MRUA - 5.MRU
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un muelle cuya K = 50 N/m mide 25 cm de longitud cuando no se aplica fuerza sobre el mismo. Calcular:
a) La fuerza que se debe aplicar sobre el muelle para que tenga 45 cm de largo.
b) La longitud del muelle, cuando se aplica una fuerza de 25 N sobre el mismo.
a) 10 N b) 70 cm
a) 20 N b) 20 cm
a) 50 N 5 cm
a) 5 N y 0,5 m
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
A mayor _________ la fuerza de gravedad disminuye.
Distancia
Masa
Volumen
Carga
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
¿Qué peso tendría en Marte un astronauta con una masa de 59.8 kg tendría un peso en Marte? (gravedad= 3.7 m/s2)
586.04 N
221.26 N
59.8 kg
221.26 kg
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Determina la energía cinética de un coche que se desplaza a 3 m/s si su masa es de 345 kilogramos.
1.552,5 J
10.143 J
517,5 J
30.429 J
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