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兩道SAT2物理考試題目

2013-04-23 00:00     供稿單位: 互聯網    

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       今天新航道SAT頻道小編為大家整理了兩道SAT物理考試題目,考生們可以做一下練習,許多中國考生喜歡選擇SAT2物理作為考試科目,因為很多的知識點高中就已經學習過。以下是詳細內容。  

1.A boy vertical throw a ball up in the air, and then catch it. Which at FIG one of the most representative of the position of the ball with respect to time?
Explanation
Usually you can answer a little faster than the standard five select Done problem classification problem, because you only need to review a set of answer choices to answer a series of questions.
The answer to the question is the position of the ball B with respect to time by the following formula can be expressed as y = -1 / 2 GT2, wherein g is downward, the acceleration of gravity. As we can see, the function y t is an inverted parabola. More intuitive, we know that, over time, the ball throwing in the air will rise, deceleration, stop, and then decreased.
2. In a closed container of gas is steadily heated over a period of time. The following statement is true of this process?
(A) the average kinetic energy of the gas molecules decreases
(B) an increase in the quality of the container
(C) on the gas pressure exerted by the increase of the container on the wall
(D) changing the gas into a liquid phase
(E) the gas is reduced specific heat
Explanation
The answer to this question is C. The key is to remember that the ideal gas law: PV = NRT.
According to this formula, the increase in temperature accompanied by an increase in pressure. A is wrong because the average kinetic energy of the gas molecules corresponding to their temperature, if the temperature increases, so the average kinetic energy of molecules. B is wrong, because we are dealing with a closed container: quality can not increase or decrease. D is an error, because the gas must be cooled instead of heated, becomes a liquid phase. Finally, E is wrong, a coonstant, because the specific heat of any substance is not subject to change. We will touch on this in Chapter 9: Thermal Physics.

     以上是新航道SAT頻道小編為大家整理的SAT物理考試題目的全部內容,希望對大家有幫助,更多資訊、資料請訪問新航道SAT頻道http://www.mehkj.com.cn/sat/

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