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What holds more soapy water or pure water on a penny?
Soapy water will hold more on a penny compared to pure water. This is because the surface tension of soapy water is lower than that of pure water, allowing it to spread out more and cover the penny's surface.
How surface tension behaves?
for example, if drops of water are placed on the top of a penny, the surface tension is going to hold the drops on top of the penny. when the penny can hold no more, it will all overflow. make sense?
How many drops of water can a penny hold on its surface?
Water has a surface tension. When dropping water on a penny, people usually underestimate how much water the surface of a penny can hold. The surface tension of water is strong on a smaller surface, and when dropping water on the surface of a penny, towards 20 drops the water on the penny will look like it is bulging out a lot. It really depends, depending on which side of the penny you are using, it ranges from 6 to even 34 drops using a simple eyedropper. Because eyedroppers do not produce the exact same size of drops every time, the result is not very accurate. To be even more accurate, scientists use accurate distributing machines and a very new penny to determine how many drops of water it can hold without vibrations. There could be certain amounts of grime and dirt on a penny, depending on how old it is, which can affect how much water can be put onto it. Different types of water can also change how much a penny can hold. Tap water has certain amounts of chemicals in it, and that could also affect the weight and surface tension of the water on the penny. The height of which the water comes off from matters too, the more force of the water that comes down, the more likely the water on the penny is to splash and spill. The place the water lands on also has an effect on it. To be even more accurate, light has a mass. If light shines directly at the water on a penny, it could push it a tiny bit. This change is impossible to see, and it has basically no effect on the penny or water at all whatsoever. Remember, all tests may not be 100% accurate, and there may always be a chance that there is a better way to make a penny hold more droplets of water than the presumed "most advanced and accurate" way.
Why would you get more water on a penny than rubbing alcohol?
Water has a higher surface tension than rubbing alcohol, which allows it to form a more cohesive droplet that can hold together better on the surface of a penny. Additionally, water is more polar than rubbing alcohol, leading to stronger adhesive forces between the water molecules and the penny's surface. This results in water being able to "stick" and accumulate more effectively than rubbing alcohol.
What has more density penny duck ping pong ball or water?
A penny
Why do some pennies hold more water than others?
Some pennies may hold more water than others due to variations in surface tension caused by differences in cleanliness or wear on the penny's surface. A clean penny may have a lower surface tension and allow water to spread more easily across its surface, while a dirty or oxidized penny may have a higher surface tension, causing the water to bead up and be contained in a smaller area.
What is more dense a penny or a toothpick?
A penny is more dense than a wooden toothpick. This can be easily tested by placing both in a glass of water.
Why does cold air hold more water?
It doesn't. Warm air can hold more water, as it has more energy to retain water in a gaseous state.
Does a new penny have more mass than an old penny?
Newer pennies actually have less mass than older ones. U.S. cents minted before 1982 were mostly copper and weigh 3.1 grams, while newer ones are mostly zinc and weigh 2.5 grams.
What cleans a penny better dish soap or water?
Dish soap is more effective at cleaning a penny than water alone. Dish soap can break down oils and dirt on the surface of the penny, allowing for a more thorough cleaning compared to just using water.
Does a pot or a penny have more thermal energy?
A pot typically has more thermal energy than a penny due to its larger size and greater mass, which allows it to hold more heat. Additionally, the pot is usually made of materials with higher thermal conductivity compared to a penny.
Does cold water or hot water hold more oxygen?
Cold water can hold more dissolved oxygen than hot water. This is because the solubility of oxygen in water decreases as the temperature increases. Therefore, cold water has the ability to hold more oxygen than hot water.
