根据第一段前两句“Sound is a form of energy that can't beseen. We can sense sound.”可知声音是一种看不见的能量形式,但能感觉到,C项错误。根据第四段第三、四“If youput a few grains of rice on the drum gently. The vibrations maycause the rice to jump.”可知轻轻地在鼓上放几粒米。
7.Sound is a form of energy transfer and we could define loudness in terms of the energy per unit of time or power output of the sound,but it wouldn’t give the complete picture.Sound waves travel outward like balloons expanding around their source.The sound’s power is distributed on ...
Sound is a form of energy, like light, that vibrates and travels in waves. When something vibrates, like a guitar string, it pushes molecules together. This creates an area of high pressure, which is called the compression part of a sound wave. As the string moves the other direction it...
1. What is the definition of sound waves and how is the sound produced? A sound wave is the pattern of a disturbance generated by the flow of energy as it propagates away from the source of the sound across a medium (such as air, water, or any other liquid or solid matter). When ...
根据Sound is made when something vibrates(声音是在物体振动时发出的)可知声音是在物体振动时发出的。故选A。(3)主旨大意题。根据Light,heat and sound are forms of energy.Here is an introduction to them.(光、热和声音是能量的形式。下面是对它们的介绍。)可知是介绍了光、热和声音...
故选B。2.细节理解题。根据“Sound is made when something vibrates”可知声音是通过振动产生。故选A。3.主旨大意题。根据“Light, heat and sound are forms of energy. Here is an introduction to them.”以及本文内容可知本文主要介绍了和光、热和声音有关的信息。故选D。
Sound is a kind of energy that you can hear. Sound is made when something vibrates(振动). When you talk or sing,put your hand on the side of your neck. Then you will feel your neck vibrating. When you hit a drum, the drum and the air around it vibrate. When the vibrating air ...
The form of energy called sound is produced when matter moves or vibrates. The vibrations are transferred to another medium, usually the air, and travel through it as sound waves. You hear a sound when its vibrations reach your eardrum, causing it to vibrate. The pitch of a sound is dire...
It requires periodic recharging or replacement of these batteries for extending the working of such devices. Each time in order to charge these batteries an alternating current is necessary. Here we present sound as a new form of renewable energy for charging of these batteries to some extent. ...
<p><strong>Step-by-Step Solution:</strong></p><p>1. <strong>Understanding Sound Production</strong>: Sound is a form of energy that travels through a medium (like air, water, or solids) and is produced by vibrations.</p><p>2. <strong>Identifying the Sour