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When a needle is placed vertically in water, the force of gravity acting on the denser needle overcomes the buoyant force pushing it up, causing it to sink. However, when placed horizontally, the buoyant force acting on the needle is greater than its weight, allowing it to float due to surface tension and the needle's low surface area in contact with the water.

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Q: Why does needle sink when placed vertically in water but does not when placed horizontally?
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If you lay a steel needle horizontally on water it will float if you place the needle vertically into the water it will sink explain why?

When the steel needle is placed horizontally on water, the surface tension of water supports its weight. However, when placed vertically, the downward force due to gravity acts on a smaller surface area of the needle, causing it to break the surface tension and sink. This difference in surface area and weight distribution determines whether the needle floats or sinks.


Why does a solid needle placed horizontally on the surface of the water float?

The surface tension of water creates a layer that the needle rests on, despite being denser than water. The needle's weight is dispersed over a large enough area that it balances the upward force of surface tension. This allows the needle to remain afloat on the water's surface.


What will happen to a needle place in water?

A needle placed in water will float due to surface tension. The surface tension of water allows the needle to be supported on the surface rather than sink.


Why when you put the needle in the water it will going down?

When a needle is placed on the surface of water, the surface tension of the water causes it to be attracted to the needle, creating a depression in the water surface underneath the needle. This results in a downward force acting on the needle, causing it to sink into the water.


How much force is needed to displace 1500 pounds of water?

The force needed to displace 1500 pounds of water depends on whether you are trying to displace it vertically or horizontally. To displace 1500 pounds of water vertically (lifting it), you would need a force of 1500 pounds. If you are displacing it horizontally (pushing it), the force needed would depend on the resistance of the water and the method being used.

Related questions

If you lay a steel needle horizontally on water it will float if you place the needle vertically into the water it will sink explain why?

When the steel needle is placed horizontally on water, the surface tension of water supports its weight. However, when placed vertically, the downward force due to gravity acts on a smaller surface area of the needle, causing it to break the surface tension and sink. This difference in surface area and weight distribution determines whether the needle floats or sinks.


Why does a solid needle placed horizontally on the surface of the water float?

The surface tension of water creates a layer that the needle rests on, despite being denser than water. The needle's weight is dispersed over a large enough area that it balances the upward force of surface tension. This allows the needle to remain afloat on the water's surface.


What will happen to a needle place in water?

A needle placed in water will float due to surface tension. The surface tension of water allows the needle to be supported on the surface rather than sink.


Why when you put the needle in the water it will going down?

When a needle is placed on the surface of water, the surface tension of the water causes it to be attracted to the needle, creating a depression in the water surface underneath the needle. This results in a downward force acting on the needle, causing it to sink into the water.


How much force is needed to displace 1500 pounds of water?

The force needed to displace 1500 pounds of water depends on whether you are trying to displace it vertically or horizontally. To displace 1500 pounds of water vertically (lifting it), you would need a force of 1500 pounds. If you are displacing it horizontally (pushing it), the force needed would depend on the resistance of the water and the method being used.


What is a slip and score in art?

it is when u take a clay needle and make lines on the end of the clay going horizontally and vertically and then rub it with some water. You want to do this to both sides of the clay your sticking together. This way, they'll stick together and wont break! Hope that helps!=)


In which three directions does water move?

Water moves in three directions: downward due to gravity, horizontally as surface runoff, and vertically through infiltration into the ground.


Why would a needle flaot on the water?

A needle can float on water due to surface tension. The surface tension of water is strong enough to support the needle and prevent it from sinking, as long as the needle is carefully placed on the water and doesn't break the surface tension.


Does needle float on water?

Yes, a needle can float on water if it is carefully placed on the surface due to surface tension. However, if the needle is pushed down into the water, it will sink due to its density being greater than that of water.


What makes a needle to float in water?

A needle can float on water due to surface tension. When the needle is carefully placed on the surface of the water, its weight is not enough to break the surface tension created by the water molecules, causing it to float.


Why a wooden stick floats horizontally and not vertically?

because gravity pushes the stick down and since water is a non-sticking liquid (Hβ‚‚0)


Do sunglasses polarize light vertically?

Yes, polarized sunglasses typically block horizontally polarized light while allowing vertically polarized light to pass through. This helps to reduce glare from reflective surfaces such as water or snow.