The aim of the experiment is to ___ why some objects float and others sink. A. find out B. look out C. take out D. put out 相关知识点: 试题来源: 解析 A。“find out”意为“查明、找出”;“look out”表示“小心、留神”;“take out”是“取出、拿出”;“put out”是“扑灭、熄灭”...
Why do objects float or sink in water? Transcript All sorts of objects can float in water regardless of their shape or solidity. Whether an object is flat or pointy- or hollow- or solid- does not affect its ability to float in water. ...
How do you calculate buoyancy? Buoyancy is calculated by multiplying the density of the fluid by the volume of the object and the gravitational acceleration. Why do some objects float while others sink? Objects float when the buoyant force acting on them is greater than their wei...
Why do things float in water? Objects are made up of very tiny molecules. Molecules can be packed in close together like in a rock or more spread out like in bubble wrap. The positioning of molecules affects the density of an object. Objects with tightly packed molecules are more dense th...
Before we can understand why some things float and some don’t we need to understand density! Density is a measure of how close together these pieces are. If they are close together, the object is dense. If the pieces are far apart, the object is less dense as their is more space for...
The science of density and buoyancy determine whether objects will sink or float in water. If an object's density is greater than water, it will sink. Conversely, if an object's density is less than water, it will float. In the case of rubber, it floats because its density is far les...
They change shape and color, and squirt ink. But they also will return your gaze, "as if they're scrutinizing you."
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it orbits because there is a gravitational force between the two objects. there is an interaction even though there is no air between them. then why do you float? maybe i should talk about how you feel weight. what is your apparent weight? let me go ahead and say that what you are ...
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