This activity uses a bit ofscience trickeryto make an object that sinks in water, float in water. 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 ...
A block of wood is so loaded that it just floats in water at room temperature. What change will occur in the state of floatation, if some salt is added to water? Give reasons. View Solution A block of wood has a mass of25g. When a5gmetal piece with a volume of2cm3is attached to...
Objects that were more dense than the water sank. How do you teach floating and sinking? If something stays on top of the water then it floats.Teacher holds up, one item at the time, and asks students to put thumbs up if they think it will float or thumbs down if they think the it...
Why do objects float in liquids denser than themselves? When a tire bursts, the air coming out is cooler than the surrounding air. Explain. Why does the core of the Sun contain more helium and less hydrogen than does the surface of the Sun? A. Helium condenses more easily so, when the...
Why do objects float in liquids denser than themselves? Explain what will happen to a drop of water placed on the surface of clean mercury. What do you understand by the term surface tension of a liquid? Why do chemical compounds tend to dissolve m...
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 ...
ByBen Pauley Gravity is an attractive force that gets stronger the more massive something is. We don’t float off the Earth and the Earth never flies away from the Sun. Therefore, one might expect super massive objects like galaxies to only ever grow as loose materials fall onto them. But...
I would like to clean up my Excel VBA project by exporting all code modules and then re-importing them. I understand that there is no VBA Project export or import, and that this must be done one modu... Attribute VB_Name="Mod_Vba"' DESCRIPTION ...
In 1915, Albert Einstein figured out the answer when he published his theory of general relativity. The reason gravity pulls you toward the ground is that all objects with mass, like our Earth, actually bend and curve the fabric of the universe, called spacetime. That curvature is what you ...
Surface Tension Supported Floating of Heavy Objects: Why Elongated Bodies Float Better? 上传人:leo_wyoming·上传时间:2024-11-03 0% 0% 0% 0% 94%