Questões do ENEM: nível médio
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6E640A33-1D Uma equação química é uma equação matemática no sentido de representar uma igualdade: todos os átomos e suas quantidades que aparecem nos reagentes também devem constar nos produtos. Considerando uma equação química e sua correspondente constante de equilíbrio, pode-se afirmar corretamente que, multiplicando-se todos os seus coeficientes por 2, a constante de equilíbrio associada a esta nova equação será6E611C47-1D Português
Interpretação de TextosUNICAMP · 2016MédioEntre para guardar nos favoritosObserve a tirinha abaixo.

Na língua portuguesa, a ordem dos algarismos de acordo com o comentário do “5” seria
6E5E4357-1D Biologia
Moléculas, células e tecidosUNICAMP · 2016MédioEntre para guardar nos favoritosEm certa espécie animal a proporção de nucleotídeos Timina na molécula de DNA é igual a t > 0. Então, a proporção de nucleotídeos Citosina nesse mesmo DNA é igual a6E58E2D7-1D Matemática
Progressão Aritmética - PAUNICAMP · 2016MédioEntre para guardar nos favoritosSeja x um número real, 0 < x < π/2, tal que a sequência (tan x , sec x , 2) é uma progressão aritmética (PA). Então, a razão dessa PA é igual a6E560A8C-1D Matemática
PoliedrosUNICAMP · 2016MédioEntre para guardar nos favoritosUm paralelepípedo retângulo tem faces de áreas 2 cm2 , 3 cm2 e 4 cm2 . O volume desse paralelepípedo é igual a6E532D1A-1D Matemática
Números ComplexosUNICAMP · 2016MédioEntre para guardar nos favoritosSeja i a unidade imaginária, isto é, i2 = −1. O lugar geométrico dos pontos do plano cartesiano com coordenadas reais (x, y) tais que (2x + yi)(y + 2xi) = i é uma6E507193-1D Matemática
PolinômiosUNICAMP · 2016MédioEntre para guardar nos favoritosConsidere o polinômio p(x) = xn + xm + 1, em que n > m ≥ 1. Se o resto da divisão de p(x) por x + 1 é igual a 3, então6E48707F-1D Matemática
CircunferênciasUNICAMP · 2016MédioEntre para guardar nos favoritosConsidere a circunferência de equação cartesiana x2 + y2 = x − y. Qual das equações a seguir representa uma reta que divide essa circunferência em duas partes iguais?6E4291C5-1D Matemática
Função ExponencialUNICAMP · 2016MédioEntre para guardar nos favoritosConsidere as funções f (x) = 3x e g(x) = x3 , definidas para todo número real x. O número de soluções da equação f (g(x)) = g(f(x)) é igual a6E3FBC58-1D Matemática
FunçõesUNICAMP · 2016MédioEntre para guardar nos favoritosSeja f(x) uma função tal que para todo número real x temos que xf (x − 1) = (x − 3) f (x) + 3. Então, f (1) é igual a6E37270B-1D Português
Interpretação de TextosUNICAMP · 2016MédioEntre para guardar nos favoritosSabe-se que Coração, cabeça e estômago é uma obra atípica na produção ficcional de Camilo Castelo Branco. Em relação a essa obra, assinale a alternativa em que todas as características listadas são corretas.6E2EEB15-1D Português
Interpretação de TextosUNICAMP · 2016MédioEntre para guardar nos favoritosNo conto “Amor”, de Clarice Lispector, após ver um cego mascando chicletes, a personagem passa por uma situação que, segundo o narrador, ela própria chama de “crise”:“O que chamava de crise viera afinal. E sua marca era o prazer intenso com que olhava agora as coisas, sofrendo espantada. O calor se tornara mais abafado, tudo tinha ganho uma força e vozes mais altas.”(Clarice Lispector, Laços de Família. Rio de Janeiro: Rocco, 2009, p.23.)Essa crise, que transforma a relação da personagem com o mundo e com a família,6E2C38A8-1D Literatura
Escolas LiteráriasUNICAMP · 2016MédioEntre para guardar nos favoritosO romance Memórias póstumas de Brás Cubas é considerado um divisor de águas tanto na obra de Machado de Assis quanto na literatura brasileira do século XIX. Indique a alternativa em que todas as características mencionadas podem ser adequadamente atribuídas ao romance em questão.6E295D97-1D Português
Interpretação de TextosUNICAMP · 2016MédioEntre para guardar nos favoritos“Uma peripécia, uma reviravolta nas circunstâncias, de uma hora para outra transforma uma sequência rotineira de acontecimentos numa história.”(Jerome Bruner, Fabricando histórias. Direito, literatura, vida. São Paulo: Letra e Voz, 2014, p.15.)Levando-se em conta a noção acima proposta por Jerome Bruner, qual é a peripécia que ocorre no terceiro ato da peça Lisbela e o prisioneiro?6E20CE06-1D Português
Interpretação de TextosUNICAMP · 2016MédioEntre para guardar nos favoritos
Assinale a alternativa correta.
6E1E236B-1D Português
Formação das Palavras: Composição, Derivação, Hibridismo, Onomatopeia e AbreviaçãoUNICAMP · 2016MédioEntre para guardar nos favoritos
Do ponto de vista da norma culta, é correto afirmar que “coisarˮ é
6E186308-1D Português
Gêneros TextuaisUNICAMP · 2016MédioEntre para guardar nos favoritos
Na tira acima, o autor retoma um célebre lema retirado do Manifesto Comunista (1848), de Karl Marx e Friedrich Engels: “Operários do mundo, uni-vos!”.
Considerando os sentidos produzidos pela tirinha, é correto afirmar que nela se lê
0B57E829-0D Inglês
Interpretação de texto | Reading comprehensionUECE · 2016MédioEntre para guardar nos favoritosTEXT
Nearly 250 million young children across the world – 43% of under-fives – are unlikely to fulfil their potential as adults because of stunting and extreme poverty, new figures show.
The first three years of life are crucial to a child’s development, according to a series of research papers published in the Lancet medical journal, which says there are also economic costs to the failure to help them grow. Those who do not get the nutrition, care and stimulation they need will earn about 26% less than others as adults.
“The costs of not acting immediately to expand services to improve early childhood development are high for individuals and their families, as well as for societies,” say the researchers. The cost to some countries in GDP (gross domestic product), they estimate, is as much as twice their spending on healthcare.
The figures come as the World Bank prepares for a summit meeting with finance ministers around the globe to discuss how nurturing children in their early years will help their countries’ economic development. The World Bank president, Jim Yong Kim, has told the Guardian that he intends to use the World Economic Forum in Davos each year to name and shame countries that do not reduce their high stunting rates.
The Lancet series says the first 24 months of life are the critical time for avoiding stunting. Undernourished children living in extreme poverty end up small and their brain development is affected, so that they find it hard to learn. “Some catch-up is possible in height-for-age after 24 months, with uncertain cognitive gains,” says one of the papers.
In sub-Saharan Africa, 66% of children are estimated to be at risk of poor development because of stunting and poverty. In south Asia, the figure is 65%, and 18% in the Caribbean and South America.
Mothers need to be well nourished to give their babies a good start in life and be able to breastfeed. Families need help to give children the nutrition and nurturing they need, say researchers. That includes breastfeeding, free pre-school education – which is available in only two-thirds of high-income countries – paid leave for parents and a minimum wage to pull more families out of poverty.
There are children at risk in all countries, rich and poor. The series points to early childhood programs that have been effective, including Sure Start in the UK, Early Head Start in the US, Chile’s Crece Contigo and Grade R in South Africa
In a Comment piece in the journal, Dr Margaret Chan, director general of the World Health Organization, Anthony Lake, executive director of the United Nations Children’s Fund, and Keith Hansen, vice-president for human development at the World Bank, write: “The early childhood agenda is truly global, because the need is not limited to low-income countries. Children living in disadvantaged households in middle-income and wealthy countries are also at risk.
“In targeting our investments, we should give priority to populations in the greatest need, such as families and children in extreme poverty and those who require humanitarian assistance. In addition, we have to build more resilient systems in vulnerable communities to mitigate the disruptive influence of natural disasters, fragility, conflict, and violence.”
Wanda Wyporska, executive director of the Equality Trust, said: “It’s no surprise that the richer you are, the better your health is likely to be”. But the chasm of health inequality between rich and poor has widened in recent years.
“Being born into a poor family shouldn’t mean decades of poorer health and even premature death, but that’s the shameful reality of the UK’s health gap. If you rank neighborhoods in the UK from the richest to the poorest, you have almost perfectly ranked health from the best to the worst.”
https://www.theguardian.com/global-development/2016/oct/04
According to the figures presented in the article, the highest rate of children who suffer, in their development, the consequences of stunting and poverty is in0B55783D-0D Inglês
Interpretação de texto | Reading comprehensionUECE · 2016MédioEntre para guardar nos favoritosTEXT
Nearly 250 million young children across the world – 43% of under-fives – are unlikely to fulfil their potential as adults because of stunting and extreme poverty, new figures show.
The first three years of life are crucial to a child’s development, according to a series of research papers published in the Lancet medical journal, which says there are also economic costs to the failure to help them grow. Those who do not get the nutrition, care and stimulation they need will earn about 26% less than others as adults.
“The costs of not acting immediately to expand services to improve early childhood development are high for individuals and their families, as well as for societies,” say the researchers. The cost to some countries in GDP (gross domestic product), they estimate, is as much as twice their spending on healthcare.
The figures come as the World Bank prepares for a summit meeting with finance ministers around the globe to discuss how nurturing children in their early years will help their countries’ economic development. The World Bank president, Jim Yong Kim, has told the Guardian that he intends to use the World Economic Forum in Davos each year to name and shame countries that do not reduce their high stunting rates.
The Lancet series says the first 24 months of life are the critical time for avoiding stunting. Undernourished children living in extreme poverty end up small and their brain development is affected, so that they find it hard to learn. “Some catch-up is possible in height-for-age after 24 months, with uncertain cognitive gains,” says one of the papers.
In sub-Saharan Africa, 66% of children are estimated to be at risk of poor development because of stunting and poverty. In south Asia, the figure is 65%, and 18% in the Caribbean and South America.
Mothers need to be well nourished to give their babies a good start in life and be able to breastfeed. Families need help to give children the nutrition and nurturing they need, say researchers. That includes breastfeeding, free pre-school education – which is available in only two-thirds of high-income countries – paid leave for parents and a minimum wage to pull more families out of poverty.
There are children at risk in all countries, rich and poor. The series points to early childhood programs that have been effective, including Sure Start in the UK, Early Head Start in the US, Chile’s Crece Contigo and Grade R in South Africa
In a Comment piece in the journal, Dr Margaret Chan, director general of the World Health Organization, Anthony Lake, executive director of the United Nations Children’s Fund, and Keith Hansen, vice-president for human development at the World Bank, write: “The early childhood agenda is truly global, because the need is not limited to low-income countries. Children living in disadvantaged households in middle-income and wealthy countries are also at risk.
“In targeting our investments, we should give priority to populations in the greatest need, such as families and children in extreme poverty and those who require humanitarian assistance. In addition, we have to build more resilient systems in vulnerable communities to mitigate the disruptive influence of natural disasters, fragility, conflict, and violence.”
Wanda Wyporska, executive director of the Equality Trust, said: “It’s no surprise that the richer you are, the better your health is likely to be”. But the chasm of health inequality between rich and poor has widened in recent years.
“Being born into a poor family shouldn’t mean decades of poorer health and even premature death, but that’s the shameful reality of the UK’s health gap. If you rank neighborhoods in the UK from the richest to the poorest, you have almost perfectly ranked health from the best to the worst.”
https://www.theguardian.com/global-development/2016/oct/04
The World Bank president has said that each year in the World Economic Forum he intends to0B51EB0E-0D Inglês
Interpretação de texto | Reading comprehensionUECE · 2016MédioEntre para guardar nos favoritosTEXT
Nearly 250 million young children across the world – 43% of under-fives – are unlikely to fulfil their potential as adults because of stunting and extreme poverty, new figures show.
The first three years of life are crucial to a child’s development, according to a series of research papers published in the Lancet medical journal, which says there are also economic costs to the failure to help them grow. Those who do not get the nutrition, care and stimulation they need will earn about 26% less than others as adults.
“The costs of not acting immediately to expand services to improve early childhood development are high for individuals and their families, as well as for societies,” say the researchers. The cost to some countries in GDP (gross domestic product), they estimate, is as much as twice their spending on healthcare.
The figures come as the World Bank prepares for a summit meeting with finance ministers around the globe to discuss how nurturing children in their early years will help their countries’ economic development. The World Bank president, Jim Yong Kim, has told the Guardian that he intends to use the World Economic Forum in Davos each year to name and shame countries that do not reduce their high stunting rates.
The Lancet series says the first 24 months of life are the critical time for avoiding stunting. Undernourished children living in extreme poverty end up small and their brain development is affected, so that they find it hard to learn. “Some catch-up is possible in height-for-age after 24 months, with uncertain cognitive gains,” says one of the papers.
In sub-Saharan Africa, 66% of children are estimated to be at risk of poor development because of stunting and poverty. In south Asia, the figure is 65%, and 18% in the Caribbean and South America.
Mothers need to be well nourished to give their babies a good start in life and be able to breastfeed. Families need help to give children the nutrition and nurturing they need, say researchers. That includes breastfeeding, free pre-school education – which is available in only two-thirds of high-income countries – paid leave for parents and a minimum wage to pull more families out of poverty.
There are children at risk in all countries, rich and poor. The series points to early childhood programs that have been effective, including Sure Start in the UK, Early Head Start in the US, Chile’s Crece Contigo and Grade R in South Africa
In a Comment piece in the journal, Dr Margaret Chan, director general of the World Health Organization, Anthony Lake, executive director of the United Nations Children’s Fund, and Keith Hansen, vice-president for human development at the World Bank, write: “The early childhood agenda is truly global, because the need is not limited to low-income countries. Children living in disadvantaged households in middle-income and wealthy countries are also at risk.
“In targeting our investments, we should give priority to populations in the greatest need, such as families and children in extreme poverty and those who require humanitarian assistance. In addition, we have to build more resilient systems in vulnerable communities to mitigate the disruptive influence of natural disasters, fragility, conflict, and violence.”
Wanda Wyporska, executive director of the Equality Trust, said: “It’s no surprise that the richer you are, the better your health is likely to be”. But the chasm of health inequality between rich and poor has widened in recent years.
“Being born into a poor family shouldn’t mean decades of poorer health and even premature death, but that’s the shameful reality of the UK’s health gap. If you rank neighborhoods in the UK from the richest to the poorest, you have almost perfectly ranked health from the best to the worst.”
https://www.theguardian.com/global-development/2016/oct/04
In terms of the availability of free pre-school education, it is mentioned in the text that it