period per second

简明释义

周秒

英英释义

例句

1.The sound waves produced by the speaker have a period per second of 440 Hz.

扬声器产生的声波的频率为440 Hz，即每秒周期为440。

2.This pendulum swings back and forth at a rate of 2 period per second.

这个摆锤以每秒2周期的速度来回摆动。

3.In physics, the concept of period per second is crucial for understanding wave motion.

在物理学中，每秒周期的概念对于理解波动运动至关重要。

4.To calculate the speed of the wave, you need to know the period per second of the oscillation.

要计算波的速度，你需要知道振荡的每秒周期。

5.The machine operates at a frequency of 10 period per second, which means it completes 10 cycles every second.

这台机器以每秒10周期的频率运行，这意味着它每秒完成10个循环。

作文

Understanding the concept of frequency is essential in various fields such as physics, engineering, and even music. One of the fundamental expressions of frequency is the term period per second, which refers to the number of cycles or events that occur in one second. In simpler terms, it tells us how many times something happens within a specified time frame. The relationship between period and frequency is crucial; while frequency measures how often an event occurs, the period indicates the duration of one complete cycle of that event.

To illustrate this concept, let’s consider a simple example: a pendulum swinging back and forth. If the pendulum completes one full swing every two seconds, we can say that the period of the pendulum is two seconds. Consequently, the frequency, or period per second, would be 0.5 Hz (Hertz), indicating that the pendulum swings back and forth half a time each second. This relationship helps us understand the dynamics of oscillatory systems and is widely applicable in real-world scenarios.

In the realm of sound, the concept of period per second becomes even more significant. Musical notes are produced by vibrating objects, and the frequency of these vibrations determines the pitch of the sound we hear. For instance, the note A4, commonly used as a tuning standard, has a frequency of 440 Hz, meaning it completes 440 cycles in one second. Thus, the period per second for this note is approximately 0.00227 seconds, indicating the time taken for one complete cycle of the sound wave. Musicians and audio engineers rely on this understanding to create harmonious compositions and ensure that instruments are in tune.

Moreover, the concept of period per second extends beyond the physical sciences into technology and everyday life. In electronics, the frequency of alternating current (AC) is measured in hertz, where a typical household supply might operate at 50 or 60 Hz. This means that the current changes direction 50 or 60 times each second. Understanding this frequency is vital for the design and operation of electrical appliances, ensuring they function correctly and efficiently.

In conclusion, the term period per second encapsulates a fundamental aspect of frequency, providing insight into the behavior of various systems across different disciplines. Whether we are analyzing the motion of a pendulum, the pitch of a musical note, or the flow of electrical current, recognizing the significance of period per second enhances our comprehension of the world around us. By grasping this concept, we can better appreciate the intricacies of both natural phenomena and technological advancements, ultimately enriching our knowledge and experiences in diverse fields.

理解频率的概念在物理学、工程学甚至音乐等多个领域都是至关重要的。频率的一个基本表达是术语每秒周期，它指的是在一秒内发生的周期或事件的数量。简单来说，它告诉我们在指定时间范围内某事发生的次数。周期与频率之间的关系至关重要；频率测量事件发生的频率，而周期则表示该事件一个完整周期的持续时间。

为了说明这一概念，让我们考虑一个简单的例子：摆锤来回摆动。如果摆锤每两秒完成一次完整摆动，我们可以说摆锤的周期是两秒。因此，频率或每秒周期将是0.5赫兹（Hz），这表明摆锤每秒来回摆动半次。这种关系帮助我们理解振荡系统的动态，并广泛应用于现实世界的场景中。

在声音领域，每秒周期的概念变得更加重要。音乐音符是由振动物体产生的，这些振动的频率决定了我们听到的声音的音高。例如，A4音符通常用作调音标准，其频率为440赫兹，这意味着它每秒完成440个周期。因此，该音符的每秒周期大约为0.00227秒，表示声波一个完整周期所需的时间。音乐家和音频工程师依靠这种理解来创作和谐的作品，并确保乐器保持调音。

此外，每秒周期的概念不仅限于物理科学，还扩展到技术和日常生活中。在电子学中，交流电（AC）的频率以赫兹为单位测量，典型的家庭电源可能在50或60赫兹运行。这意味着电流每秒改变方向50或60次。理解这一频率对于电器的设计和操作至关重要，确保它们正常高效地运行。

总之，术语每秒周期概括了频率的一个基本方面，为不同学科系统的行为提供了洞察。无论我们是在分析摆锤的运动、音乐音符的音高，还是电流的流动，认识到每秒周期的重要性都增强了我们对周围世界的理解。通过掌握这一概念，我们能够更好地欣赏自然现象和技术进步的复杂性，最终丰富我们在各个领域的知识和经验。