Movimento Uniforme E Variado

The statement "O quilômetro é uma medida de distância" translates to "The kilometer is a unit of distance" in English. This statement is true because a kilometer is a commonly used metric unit for measuring distances. It is equal to 1000 meters and is used in various contexts such as road signs, maps, and athletic events.

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.

The correct answer is "A velocidade aumenta rápido." This means that the speed increases quickly.

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.

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.

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.

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.

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".

The correct answer is BC because it indicates the section where the car is stopped.

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.

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.

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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.

In a uniform motion, it can be inferred that the body covers equal distances in equal times.

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.

The graph on the right represents a retrograde motion because the velocity is negative.

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.

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.

The figure and the graphs represent a uniform motion, where the object is moving at a constant speed and in a straight line.

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.