
ficha formativa 11º
Authored by Ana Vilhena
Physics
11th Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What is the type of chemical equilibrium of the following reaction?
Homogeneous
Heterogeneous
Complete
Incomplete
2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
A ray of red light falls on the curved surface of a semicircular glass lens, with refractive index 1.58, undergoing total reflection.
Total reflection occurs when the angle of incidence is_______ to the limiting angle and the propagation medium of the incident ray has _________.
higher … higher speed of propagation
higher … higher index of refraction
lower … lower refractive index
lower … lower propagation speed
3.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
What is the relationship between the angle of incidence and the angle of reflection?
They are always equal
They are always different
They are equal only in certain cases
They are never related
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Qual cor de luz tem o comprimento de onda mais longo?
vermelho
azul
verde
violeta
5.
MULTIPLE CHOICE QUESTION
30 sec • 4 pts
Qual é a unidade de medida do índice de refração?
sem unidades
Metros
graus
segundos
6.
FILL IN THE BLANK QUESTION
1 min • 3 pts
A decomposição do tetróxido de dinitrogênio, em dióxido de nitrogénio, pode ser representada por ...
A uma temperatura de 25ºC, a constante de equilíbrio, Kc é 4,63x10-3.
A constante de equilíbrio da reação inversa é _________ que a da reação direta, o que nos permite afirmar que a reação direta é a ________ extensiva, a 25ºC.
7.
OPEN ENDED QUESTION
1 min • 5 pts
Uma das reações envolvidas na produção industrial do di-hidrogénio, a partir da reformação do metano com vapor de água, pode ser traduzida por
Conclua, fundamentando, como variará a constante de equilíbrio, , da reação considerada se a temperatura do sistema aumentar.
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