What makes an object float? Water Weight An object placed in water that rises to the surface is said to float on the top. There is a scientific principle that explains this that is rooted in physics. Answer and Explanation: Any object that has less density than water will float when put...
解析 B。解析:文章中提到“When an object is placed in water, it experiences an upward force called buoyant force. If the buoyant force is greater than the weight of the object, the object will float.”,所以使物体漂浮的力是浮力。反馈 收藏 ...
Buoyancy(浮力): What makes a boat float? What are the characteristics of water that help a boat to float? How do boat design and construction make it suitable for sea voyage? This educational program focuses on the science of buoyancy and uses construction skills to judge the students’ abili...
What Makes Things Float?: Two young boys learn why and under what conditions an object will float in water. For elementary and junior high school grades.
Exercise is an important part of every astronaut’s daily life to prevent muscle loss (肌肉萎缩). Usually, astronauts exercise two hours every day. Lifting 200 pounds on the earth may be a lot of work. But lifting t...
15 an example of how trends in art can change attitudes to an earlier work 16 the original function of a particular type of art 17 ways of assessing whether or not an object is art 18 how artists deal with the less interesting aspects of their work ...
A. sink in the water B. move up and down in the water C. stay on the surface of the water D. swim quickly in the water 相关知识点: 试题来源: 解析 C。“float in the water”意思是漂浮在水中,也就是停留在水面上,即“stay on the surface of the water”。A 选项是沉入水中,B 选项...
What is different between them? A. One can carry toys and one can float. B. Both can carry toys. C. Both can float. D. One can fly and one can swim. 相关知识点: 试题来源: 解析 A。本题考查玩具火车和玩具船的不同功能,玩具火车能运载玩具,玩具船能浮在水面上。
Now, people are getting richer and richer. Lets think, what will the life be like in the future? In the future, we wont have to change many clothes every day. We will wear a kind of special clothes. We can be warm when we feel cold and be cool when we feel hot. They will have...
to the water to make the egg float? Add ___.声明: 本网站大部分资源来源于用户创建编辑，上传，机构合作，自有兼职答题团队，如有侵犯了你的权益，请发送邮箱到feedback@deepthink.net.cn 本网站将在三个工作日内移除相关内容,刷刷题对内容所造成的任何后果不承担法律上的任何义务或责任 ...