Movimento Uniforme E Variado
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O quilômetro é uma medida de distância.
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Verdadeiro
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Falso
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- 2.
O que acontece quando um carro desacelera?
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Sua velocidade aumenta
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Sua velocidade diminui
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Sua velocidade não se altera
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Não faço a mínima idéia
Correct Answer
A. Sua velocidade diminuiExplanation
Quando um carro desacelera, sua velocidade diminui. A desaceleração é o oposto da aceleração, ou seja, é a diminuição da velocidade de um objeto em movimento. Portanto, quando um carro desacelera, sua velocidade diminui gradualmente até parar ou atingir uma velocidade menor.Rate this question:
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- 3.
Se acelera muito:
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A velocidade aumenta rápido
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A velocidade diminui rápido
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A velocidade se anula
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A velocidade diminui devagar
Correct Answer
A. A velocidade aumenta rápidoExplanation
The correct answer is "A velocidade aumenta rápido." This means that the speed increases quickly.Rate this question:
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- 4.
A posição inicial de um corpo é de 5m, e sua velocidade vale 2m/s, a função da posição deste movimento é:
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S = 2 + 5.t
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S = 5 + 5.t
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S = 2 + 2.t
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S = 5 + 2.t
Correct Answer
A. S = 5 + 2.tExplanation
The correct answer is S = 5 + 2.t. This equation represents the position of the body as a function of time. The initial position of the body is given as 5m, and the velocity is given as 2m/s. The equation S = 5 + 2.t shows that the position of the body increases by 5m and then increases by 2m for every second that passes.Rate this question:
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- 5.
O metro é uma medida de tempo.
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Verdadeiro
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Falso
Correct Answer
A. FalsoExplanation
The statement "O metro é uma medida de tempo" is false. The word "metro" in Portuguese means "meter" in English, which is a unit of length, not time. Therefore, the statement is incorrect.Rate this question:
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- 6.
O gráfico (s x t) no movimento uniforme é um(a):
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Círculo
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Parábola
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Reta
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Senóde
Correct Answer
A. RetaExplanation
The graph (s x t) in uniform motion is a straight line because in uniform motion, the distance traveled by an object is directly proportional to the time taken. This means that as time increases, the distance also increases at a constant rate, resulting in a straight line on the graph.Rate this question:
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- 7.
O movimento uniforme é caracterizado por:
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Ter velocidade constante
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Ter aceleração constate
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Posição sempre aumentando
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Posição sempre diminuindo
Correct Answer
A. Ter velocidade constanteExplanation
The correct answer is "Ter velocidade constante" (To have constant speed). In uniform motion, an object moves with a constant speed, meaning that its velocity remains the same throughout the motion. This implies that there is no acceleration acting on the object. The other options, such as having constant acceleration or the position always increasing or decreasing, do not define uniform motion.Rate this question:
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- 8.
A posição de um corpo significa sua:
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Posição
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Velocidade
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Aceleração
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Massa
Correct Answer
A. PosiçãoExplanation
A posição de um corpo se refere à sua localização em relação a um ponto de referência. É uma medida espacial que indica onde o objeto está localizado. Portanto, a resposta correta é "posição".Rate this question:
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- 9.
Em qual trecho o carro está parado?
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AB
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BC
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CD
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Todos
Correct Answer
A. BCExplanation
The correct answer is BC because it indicates the section where the car is stopped.Rate this question:
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- 10.
O gráfico ao lado representa um movimento uniforme. Então a velocidade do referido movimento é:
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2 m/s
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3 m/s
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4 m/s
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5 m/s
Correct Answer
A. 5 m/sExplanation
The graph represents a uniform motion, which means that the object is moving with a constant velocity. Looking at the graph, we can see that the slope of the line is constant and positive, indicating a constant positive velocity. The value of the slope corresponds to the velocity of the motion. In this case, the slope is equal to 5, indicating that the velocity of the motion is 5 m/s.Rate this question:
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- 11.
Se a posição está aumentando podemos dizer que o movimento é
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Progressivo
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Regressivo
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Retilineo
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Acelerado
Correct Answer
A. ProgressivoExplanation
If the position is increasing, it means that the object is moving forward or advancing in a certain direction. Therefore, the correct answer is "Progressivo," which translates to "progressive" in English.Rate this question:
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- 12.
O gráfico ao lado é de um:
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Movimento variado e a velocidade inicial é 10 m/s
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Movimento uniforme e a sua velocidade é de 20 m/s
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Movimento variado e a velocidade inicial é 20 m/s
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Movimento variado e a velocidade inicial é 30 m/s
Correct Answer
A. Movimento uniforme e a sua velocidade é de 20 m/s -
- 13.
No movimento uniforme a função horária nos fornece:
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A distância percorrida
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O deslocamento
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A posição em função do tempo
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A velocidade
Correct Answer
A. A posição em função do tempoExplanation
In a uniform motion, the equation gives us the position as a function of time. This means that we can determine the exact position of an object at any given time during its motion. The other options, such as distance traveled, displacement, and velocity, can also be determined using the equation, but the primary information it provides is the position of the object at different points in time.Rate this question:
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- 14.
Num movimento uniforme podemos afirmar que:
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O corpo percorre distâncias iguais em tempos iguais
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O corpo percorre distancias maiores a medida que o tempo passa
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A distância percorrida é igual ao tempo gasto
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A velocidade aumenta a medida que o tempo passa
Correct Answer
A. O corpo percorre distâncias iguais em tempos iguaisExplanation
In a uniform motion, it can be inferred that the body covers equal distances in equal times.Rate this question:
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- 15.
O gráfico da direita é de um movimento retrógrado porque a velocidade é _____________
Correct Answer
negativaExplanation
The graph on the right represents a retrograde motion because the velocity is negative.Rate this question:
- 16.
Existe ________________ no movimento variado e falta no movimento uniforme.
Correct Answer
aceleração
aceleracaoExplanation
The correct answer is "aceleração" or "aceleracao". In the given sentence, it is stated that there is "aceleração" (acceleration) in varied movement and it is lacking in uniform movement. This implies that the presence of acceleration characterizes varied movement, while uniform movement lacks acceleration.Rate this question:
- 17.
No movimento retrógrado os _________________ diminuem com o tempo.
Correct Answer
espaçosExplanation
In the context of the sentence, the word "espaços" refers to spaces. The correct answer suggests that in a retrograde movement, the spaces decrease over time. This implies that the objects or entities involved in the movement are getting closer together or becoming more compressed as time passes.Rate this question:
- 18.
O que está faltando em um dos gráficos da figura ao lado?
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V > 0
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V < 0
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V = 0
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0 < V > O
Correct Answer
A. V > 0Explanation
One of the graphs in the figure is missing the condition where V is greater than 0. This means that the value of V is positive, indicating a positive voltage or value.Rate this question:
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- 19.
A figura e os gráficos representam um movimento ______________
Correct Answer
uniformeExplanation
The figure and the graphs represent a uniform motion, where the object is moving at a constant speed and in a straight line.Rate this question:
- 20.
No movimento ___________________ os espaços aumentam com o tempo.
Correct Answer
progressivoExplanation
In the given sentence, the word "progressivo" is used to describe the movement. This suggests that the spaces are increasing or getting bigger with time.Rate this question:
Quiz Review Timeline (Updated): Mar 21, 2023 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Jun 22, 2016Quiz Created by
Andre-luissc
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