Questões - AFA | Gabarito e resoluções

(AFA - 2008) A figura abaixo apresenta dois corpos de massa m suspensos por fios ideais que passam por roldanas tambm ideais. Um terceiro corpo, tambm de massa m, suspenso no ponto mdio M do fio ebaixado ata posio de equilbrio. O afastamento do ponto M em relao a sua posioinicial

(AFA - 2008) A throw-away world A lot of people feel that pollution has become one of the biggest problems in the world today. But when we talk about pollution, what do we really mean? Well, when you pollute something, you make it dirty or dangerous for other people or animals. If you put engine oil in water, you will pollute it; nobody will be able to drink it or wash in it. All over the world, there are people polluting the land, the sea and the air. The main reason for pollution is waste something which is no longer needed. Waste can be many things. It can be yesterdays newspaper, an old car, your dirty bath water, or smoke from a factory chimney. Some waste is dangerous because it contains poisons. This kind of waste is called toxic waste, and it is the problem of toxic waste which is worrying many people and governments today. All living things, especially people, make waste. There are more than six billion people in the world. They all need to eat, dress and travel about. Most of them need to heat their homes as well. They buy things, they use them and they throw their old things away. Nowadays, we live in a throw away world. (Adapted from Recycling Factfiles, Oxford.) Mark the option that justifies the tittle of the text above.

QUESTO ANULADA!! (AFA - 2008) Uma viga homognea suspensa horizontalmente por dois fios verticais como mostra a figura abaixo. A razo entre as traes nos fios A e B vale: a) b) c) d) QUESTO ANULADA!!

(AFA - 2008) A throw-away world A lot of people feel that pollution has become one of the biggest problems in the world today. But when we talk about pollution, what do we really mean? Well, when you pollute something, you make it dirty or dangerous for other people or animals. If you put engine oil in water, you will pollute it; nobody will be able to drink it or wash in it. All over the world, there are people polluting the land, the sea and the air. The main reason for pollution is waste something which is no longer needed. Waste can be many things. It can be yesterdays newspaper, an old car, your dirty bath water, or smoke from a factory chimney. Some waste is dangerous because it contains poisons. This kind of waste is called toxic waste, and it is the problem of toxic waste which is worrying many people and governments today. All living things, especially people, make waste. There are more than six billion people in the world. They all need to eat, dress and travel about. Most of them need to heat their homes as well. They buy things, they use them and they throw their old things away. Nowadays, we live in a throw away world. (Adapted from Recycling Factfiles, Oxford.) Choose the alternative which DOESNT express an example of waste.

(AFA - 2008) A throw-away world A lot of people feel that pollution has become one of the biggest problems in the world today. But when we talk about pollution, what do we really mean? Well, when you pollute something, you make it dirty or dangerous for other people or animals. If you put engine oil in water, you will pollute it; nobody will be able to drink it or wash in it. All over the world, there are people polluting the land, the sea and the air. The main reason for pollution is waste something which is no longer needed. Waste can be many things. It can be yesterdays newspaper, an old car, your dirty bath water, or smoke from a factory chimney. Some waste is dangerous because it contains poisons. This kind of waste is called toxic waste, and it is the problem of toxic waste which is worrying many people and governments today. All living things, especially people, make waste. There are more than six billion people in the world. They all need to eat, dress and travel about. Most of them need to heat their homes as well. They buy things, they use them and they throw their old things away. Nowadays, we live in a throw away world. (Adapted from Recycling Factfiles, Oxford.) Mark the alternative that represents the same idea as the first sentence of the text.

(AFA - 2008) Uma balana estem equilbrio, no ar, tendo bolinhas de ferro num prato e rolhas de cortia no outro. Se esta balana for levada para o vcuo, pode-se afirmar que ela:

(AFA - 2008) Duas esferas A e B de mesmo volume, de materiais diferentes e presas por fios ideais, encontram-se em equilbrio no interior de um vaso com gua conforme a figura. Considerando-se as foras peso ( PA e PB), empuxo (EA e EB) e tenso no fio (TA e TB) relacionadas acada esfera, INCORRETO afirmar que

(AFA - 2008) Finally due to our disastrous sales figures Ive decided to award myself a stress related bonus. Taken from www.cartoonstock.com According to the cartoon the businessman

(AFA - 2008) Read the text and answer the following questions 17 to 19 according to it. Get Ready You will go directly to the labor market after high school, or you will prepare yourself to the university. No matter what you do, there is one very important thing to remember: you have to get ready for what is coming. And you have to do it right, otherwise people will not hire you. They will only pay you a salary when they recognize that your work has value. If you want a higher salary, you have to provide more value. Consider your experience and your knowledge today. What can you do today at work? What are your skills? What are the things that you can do that meet the needs of other people? Taken from Challenge, Richmond After graduating from high school it is highly important to

(AFA - 2008) O diagrama de fases apresentado a seguir pertence a uma substncia hipottica. Com relao a essa substncia, pode-se afirmar que:

(AFA - 2008) Read the text and answer the following questions 17 to 19 according to it. Get Ready You will go directly to the labor market after high school, or you will prepare yourself to the university. No matter what you do, there is one very important thing to remember: you have to get ready for what is coming. And you have to do it right, otherwise people will not hire you. They will only pay you a salary when they recognize that your work has value. If you want a higher salary, you have to provide more value. Consider your experience and your knowledge today. What can you do today at work? What are your skills? What are the things that you can do that meet the needs of other people? Taken from Challenge, Richmond Considering the ideas expressed by the text, mark the INCORRECT statement.

(AFA - 2008) A figura a seguir representa o Ciclo de Carnot realizado por um gs ideal que sofre transformaes numa mquina trmica. Considerando-se que o trabalho til fornecido pela mquina, em cada ciclo, igual a 1500 J e, ainda que, T1 = 600 K e T2 = 300 K, INCORRETO afirmar que

(AFA - 2008) Um cilindro de volume constante contm determinado gs ideal a temperatura T0 e presso p0. Mantm-se constante a temperatura do cilindro e introduz-se, lentamente, a partir doinstante t = 0, certa massa do mesmo gs.O grfico abaixo representa a massa m de gs existente no interior do cilindro em funo do tempo t. Nessas condies, a presso do gs existente no recipiente, para o instante t = a, igual a

(AFA - 2008) Read the text and answer the following questions 17 to 19 according to it. Get Ready You will go directly to the labor market after high school, or you will prepare yourself to the university. No matter what you do, there is one very important thing to remember: you have to get ready for what is coming. And you have to do it right, otherwise people will not hire you. They will only pay you a salary when they recognize that your work has value. If you want a higher salary, you have to provide more value. Consider your experience and your knowledge today. What can you do today at work? What are your skills? What are the things that you can do that meet the needs of other people? Taken from Challenge, Richmond The fragment meet the needs of other people taken from the text means

(AFA - 2008) Lucy Van Pelt works hard at being bossy, crabby andselfish. She is loud and yells a lot. Her smiles and motives are rarely pure. Shes a know-it-all who dispenses advice whether you want it or not and for Charlie Brown, theres a charge. (...) The absence of logic in her arguments holds a kind of shining lunacy. When it comes to compliments, Lucy only likes receiving them. If shes paying one or even smiling shes probably up to something devious. According to the paragraph above, mark the correct option about Lucy Van Pelt.