Conceptos generales

Quiz
•
Physics
•
University
•
Medium
Jazmin Maceira Idiarte
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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
En el planeta Marte la gravedad superficial es de 3.7 m/s^2. Una persona que tiene 70 Kg de masa, ¿Cuánto pesa en dicho planeta?
Más que en la Tierra
Menos que en la Tierra
Indistinto, el peso es una cantidad intrínseca del cuerpo
Faltan datos para poder calcular
Ninguna de las anteriores
Answer explanation
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Un motociclista circula con una velocidad de 80 Km/h. Expresar la velocidad en m/s.
288 m/s
22.22 m/s
8000 m/s
0.02 m/s
800 m/s
Answer explanation
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
El volumen de un objeto se puede medir en:
m^3
m^2
m
m^(-3)
m^6
Answer explanation
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sean A y B dos vectores, donde A= 3i + 5j y B= 2i - 5j. El vector C= A-B es:
C= 5i
C= 1i+5j
C= 2i + 10j
C= 5i + 5j
C= 1i + 10j
Answer explanation
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Si a un vector V = 3i + 4j lo multiplico escalarmente por 5. Cuál es su módulo?
25
5
12
7
3i + 4j
Answer explanation
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Si a un vector que posee módulo 2 se lo multiplica por un escalar negativo mayor a -1, el vector resultante será:
menos módulo, mismo sentido
mayor módulo, diferente sentido
menor módulo, diferente sentido
mayor módulo, igual sentido
igual módulo, diferente sentido
Answer explanation
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
En la figura se muestran dos triángulos rectángulos. Si el ángulo A= 30°. Cuánto valen los ángulos B y C ?
B = 30° , C = 60°
B = 20° , C = 70°
B = 15° , C = 75°
B = 25° , C = 65°
Answer explanation
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