Intermedio Física P III 08°
Quiz
•
Physics
•
8th Grade
•
Medium
Javier Ospina
Used 3+ times
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50 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Qué describe el movimiento rotacional?
El desplazamiento de un objeto en línea recta.
El giro de un objeto alrededor de un eje.
El cambio de velocidad de un objeto.
El aumento de temperatura de un objeto.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En el movimiento circular uniforme, ¿cómo es la velocidad angular?
Aumenta constantemente.
Disminuye.
Permanece constante.
Se vuelve cero.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Verdadero o Falso: La aceleración centrípeta está dirigida hacia el centro del círculo.
falso
verdadero
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cómo se calcula la aceleración centrípeta ac?
ac = v2 / r
ac = r / v2
ac = v * r
ac = r2 / v
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál es la unidad de la velocidad angular (ω)?
m/s
rad/s
N
kg
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Verdadero o Falso: La fuerza centrípeta es una fuerza ficticia que empuja hacia afuera.
F
V
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un disco gira con velocidad angular constante de 2 rad/s. ¿Cuál es su periodo (T)?
T = π s
T = 2π s
T = π/2 s
T = 1 s
Answer explanation
T = 2π/ω
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