4. Look! The egg is ___ (float) on water. How amazing!相关知识点: 试题来源: 解析 floating 该句描述的是正在发生的事情,需要使用现在进行时。现在进行时由“be + 动词的现在分词”构成。因此,空格处应填入动词float的现在分词形式floating。 答案:floating反馈...
Objects float when the volume of water they displace is less than the volume of the objects themselves. When objects sink, the volume of water they displace is greater than the volume of the object. The principle may seem relatively simple: Light objects float and heavy objects sink. However,...
So how does a shark float? There are three main ways that sharks use their bodies to float. This floating shark activity below covers one of them, the oily liver! Sharks rely on a pretty big oil-filled liver to help them stay buoyant in water. Learn more about how that works below… ...
The water in the bathtub then pushes up on the jug with a little more than 8 pounds of force, the weight of a gallon of water. An object with greater volume is pushed up with greater force because it displaces more fluid. Of course, if the object is denser (and therefore heavier) ...
1.which scientist discovered that objects in water are lifted up by a force that help them float?2.who wrote a book explaining how animals and plants developed as the environment changed?3.who invented the first steam engine?4.who used peas to show how physical characteristics are passed ...
Paper boatsare simple to make, and on any small body of water, including a lake, a puddle, a pond, or even a small stream, they could be “sailed.” By reading this article, you will be able to learn,How to Make Paper Boats that Float on Water? [Kids Guide] ...
How can a paperclip float on the surface of water? Floating: In order for an object to obey the law of flotation, its density must be equal to the mass of the water it is displacing when it floats. This means that at 50,000 ton ship is displacing 50,000 tons of water. It also ...
Archimedes' Principle states that an object completely or partially immersed in a fluid (a liquid or gas) is acted upon by an upward, or buoyant, force equal to the weight of the displaced fluid. Buoyant force arises from a difference of density between a fluid and an object immersed in ...
If an object is completely submerged, this buoyant force, pushing upwards, effectively reduces its weight: it seems to weigh less when it's underwater than it does if it were on dry land. That's why something like a rubber diving brick (one of those bricks you train with in a swimming...
What is a Galileo thermometer and how does it work? The Galileo thermometer, invented by astronomer Galileo Galilei, works mainly on the buoyancy principle. It is used to determine the capability of an object to either sink or float. It consists of glass spheres that move up and down as th...