Quiz (Activity 1 - 17 March 2025 Monday)

1. What is fluid statics?

流体静力学是什么？

• A. The study of fluids in motion (流体运动的研究

• B. The study of fluids at rest (静止流体的研究)

• C. The study of gases only (仅气体的研究)

• D. The study of solids (固体的研究)

2. Which of the following is a fluid at rest?

下列哪项是静止的流体？

• A. A flowing river (流动的河流)

• B. A glass of water on a table (桌上的一杯水)

• C. Wind blowing (风吹动)

• D. A moving car (一辆行驶中的汽车)

3. What does fluid statics primarily focus on?

流体静力学主要研究什么？

• A. Pressure in moving fluids (流体运动中的压强)

• B. Pressure in fluids at rest (静止流体中的压强)

• C. Flow velocity (流速)

• D. Fluid temperature (流体温度)

4. In a fluid at rest, pressure at a point acts equally in all directions.

在静止流体中，某一点的压强在各个方向上都是相等的。

• A. True (正确)

• B. False (错误)

5. Which of the following correctly describes fluid statics?

以下哪项正确描述了流体静力学？

• A. It deals with the force exerted by fluids in motion. (研究流体运动产生的力)

• B. It studies the behavior of fluids that are at rest. (研究静止流体的行为)

• C. It is only concerned with gas behavior. (仅研究气体行为)

• D. It is not related to pressure concepts. (与压强概念无关)

6. What happens to the pressure in a fluid at rest as the depth increases?

在静止流体中，深度增加时压强会如何变化？

• A. Pressure increases (压强增加)

• B. Pressure decreases (压强减少)

• C. Pressure stays the same (压强不变)

• D. There is no pressure (没有压强)

7. What unit is commonly used to measure pressure in fluid statics?

流体静力学中常用什么单位测量压强？

• A. Newton (牛顿)

• B. Pascal (帕斯卡)

• C. Joule (焦耳)

• D. Watt (瓦特)