第62 题:根据 “Sound is a form of energy that travels through air, water, reaches our ears and vibrates (震动) the tiny bones and fluids”(声音是一种能量形式,它通过空气、水传播,到达我们的耳朵并震动微小的骨头和液体),可知我们是通过耳朵感受震动听到声音的,也就是通过这种方式感受声音。答案是 ...
Heat is an important energy for us. Heat makes our body and our homes warm in winter. We also use heat to cook. 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...
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. ...
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 ...
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...
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...
A 选项 sound(声音):风扇运转时虽然会产生一定声音,但声音并不是风扇产生能量的主要形式,风扇的主要功能并非产生声音能量,所以 A 选项不太符合。B 选项 heat(热):一般情况下,普通风扇的主要作用不是产生热能,它主要是通过转动加快空气流动来使人感觉凉爽,而不是产生热量,所以 B 选项不正确。C 选项 moving(移动...
When I get back home, there’s nothing more satisfying than a big meat dinner. I guess l’ve always been a big meat eater and in this house, no family meal is complete without some form of meat. I still do...
the elderly, we can create a more compassionate and supportive society that values the dignity and worth of all its members, regardless of age.In conclusion, recognizing the significance of elderly people is essential for building a...