0
Yes if the surface tension of the water is not broken. If you are careful you can place a needle on the surface of the water in a glass. Also if you reduce the surface tension with detergent (just a very little is enough) the needle will sink because it's density is greater than that of the water.
NO (if the surface tension of the water is broken, a needle cannot float on the surface of water. This is because the needle has higher density than water (density is mass divided by volume).
What else can I help you with?
Can we use float cullet in container glass?
Cullets doesn't float on water.
Why do you need to use a filter needle when working with glass ampoule?
A filter needle is used when drawing liquid from a glass ampoule to prevent glass particles or debris from entering the syringe. Glass ampoules can be fragile and prone to breaking, so using a filter needle helps ensure that the contents remain uncontaminated and safe for use.
How do you get a needle to point north and south in a glass of water?
Place a magnet near the glass of water so that the needle aligns itself with the magnetic field of the Earth. The needle will then point north and south due to the influence of the magnet.
What will happen if you drop a piece of chalk and a sponge into a glass of water?
The chalk will sink to the bottom of the glass, as it is denser than water. The sponge will initially float on the surface due to its lower density, but over time it will absorb water and eventually sink.
What are the raw materials in mirror?
The primary raw materials used in the production of mirrors are glass and a reflective coating, typically made of silver or aluminum. The glass is often float glass, which provides a smooth surface, while the reflective layer is applied to the back of the glass to create the mirror effect. Additional materials may include protective coatings to enhance durability and prevent tarnishing.
Why can a sewing needle can float on the surface of water in glass?
Surface tension
Why can a sewing needle can float on the surface of water in a glass.?
A sewing needle can float on the surface of water due to a property called surface tension. Water molecules at the surface are more attracted to each other than to the air above, creating a "skin-like" barrier that can support the weight of the needle. This allows the needle to stay afloat instead of sinking.
Explain why a swing needle can float on the surface of water in a glass?
Due to surface tension, the upper surface of water acts like a stretched membrane which enables it to float a swing needle.
How can a sewing needle float on the surface of water?
The needle does not break the surface tension (meniscus). Get a small piece of toilet tissue and lay it on a glass of water. lay a needle on the tissue. The tissue will become sodden and sink, leaving the needle floating on the surface tension. Put the smallest drop of washing-up liquid on the water. The surface tension will be destroyed and the needle will sink. Try it.
Where would you see surface tension in the world?
It is relatively easy to float a sewing needle on the surface of the water in a glass. The sewing needle is steel, and steel is more dense than water, and should sink. But by carefully placing the needle on the surface of the water (lengthwise), it is not that difficult to make the needle float. It floats due to the surface tension of the water. If you are in the mood to experiment, try a paper clip as well. Make sure there is a little space between the different lengths of the steel so that none of the lengths of the paper clip touch each other. A picture of a floating paper clip can be found in the Wikipedia post linked below. You up for the challenge? Water in a pond or a slow moving stream or river exhibits surface tension that supports a number of organisms (like the oarsman or water strider) that "walk on water" and could not survive without the surface tension of the water for support. Links below are worth the look.
What is a general value for Surface Emissivity for 6mm float glass?
0.79
What happened to the needle when you added 2-3 drops of the detergent solution?
If you have floated a needle on the surface of the water in a glass then adding a little detergent will cause the needle to sink. This is because the presence of the detergent changes the surface tension of the water so that it can no longer support the needle.
What will happen to a needle if pinch of detergent is added to a water?
If you have floated a needle on the surface of the water in a glass then adding a little detergent will cause the needle to sink. This is because the presence of the detergent changes the surface tension of the water so that it can no longer support the needle.
How can you make sand appear to float around in water?
This is a thin layer on the waters surface where all the water molecules try to crowd together. If something is light enough it will float on this layer if it doesn't break through the layer even though it is more dense than water. If you are careful you can do a neat trick. Get a glass of water (it has to be clean with no detergent left over from washing) and carefully place a needle on the surface and if you are very careful the needle will float on the surface. If you wipe it over with a magnet a few times before doing,XOXO, I HOPE THAT I SERV YOUYOUR WELCOME!!
What if your teacher floats a needle on the surface of a glass of water in a demonstration What property of water is being demonstrated?
The property being demonstrated is surface tension. Water has a high surface tension due to the cohesive forces between its molecules, causing the needle, which is less dense than water, to float on the surface instead of sinking.
What happens when you stick a balloon to glass will it float?
When you stick a balloon to glass, it will not float on its own. The balloon will stick to the glass due to static electricity generated when rubbing the balloon against your hair or clothes. The balloon's ability to float is determined by the gas inside the balloon and the upward force it creates, not by sticking it to a surface.
Is a sewing machine made of glass?
NO it is not made of glass in earlier times the sewing machine was made of metal. now it is made of plastic with glass in it
