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It is easier to move through air than water because air is less dense than water. In other words, there is less matter per square inch in air than there is in water.
First of all, air is a gas, and water is a liquid. In the atomic structure of a gas, the atoms have much greater space to move around in as they are not bonded to each other in any way. In water, the atoms are closer together, and move together. This can be seen just by pouring water and sloshing it around in a glass - if you apply force in one direction, the water all moves in that direction. It takes a lot of force to get the same reaction out of gas.
Hence, the idea of "matter per square inch" - for the amount of liquid you would fit in an area, you could fit less gas in that area at the same ppi.
So, for this reason, it is easier to move against gas than liquid - where you're moving many particles of liquid out of the way, the gas is much more spread out and thus easier to move through.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoIt is easier to move your hand through air because air is a gas, which is made out of particles that are not in contact and therefore have much empty space between them.
Liquids are loosely packed and are in contact, so they present more resistance to changes in their motion based on Newton's 1st Law of Motion.
Wiki User
∙ 13y agoTwo reasons: matter density and inter-molecular forces.
In a gas the atoms are much further apart. There is less matter in a given volume of gas than the same volume of liquid. The gas, therefore, requires less force to be moved out of the way. (F=m*a)
In a liquid the atoms (or molecules) are closer together. Intermolecular forces keep these molecules in the liquid. In order for an object to pass through the liquid these forces must be broken.
To put it in a nut shell it is 'Viscosity' which differs for different fluids and with temperature. It is a property of fluid defined as a force ( Shear Force) required to move a layer of fluid against it's adjacent layer.
Something similar to Friction commonly understood for solids.
Wiki User
∙ 12y agobecause air is made up of different gasses and the particles in gasses are spread out unlike in wood which is a solid where the particles are close together. so u can move your hand through air because the particles are spread out
Wiki User
∙ 15y agoWater is a liquid at room temperature and offers little resistance to bodies moving through it. This is the reason why your hand moves easily through water
Wiki User
∙ 14y agoits faster because of the time between water and air, when you find out the time between the two you'll know why its faster
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Why it is easier and better to wash clothes in cold water than warm water?
Cold water is cheaper and really there's no difference but it could be easier on your clothes!
Why does salt make rust form quicker?
More salt in water does make make metal rust faster. This has to do with the way the electrons move through the water. They are able to move faster in salt water than they are in plain water.
Do methylated spirits travel through filter paper quicker than water?
yes methylated spirits goes through filter paper faster than water
How does honey flow more slowly than water?
It is due to the difference in viscosity . Honey is more viscous than water due to strong inter molecular forces. On the other hand water is less viscous than honey . Therefore, it's easier to pour water as compared to honey . :-)
Why do antacids dissolve faster in warm water?
It has more energy in the form of water molecules that vibrate and move around faster than those in cold water.
Why is it easier to walk through air than through water?
It is easier to walk through air than in water because air is thinner and water is much more dense.
Why can a fish move through the water easier than a human?
their fins and other physical features are thinned, unlike humans. Humans, in comparison to fish, have much bulkier limbs than fish. Water is able to move/glide past the fish body parts easier.
Why do items fall through water easier than oil?
Becaus oil is thicker and heavier than water
Why can you hear sound better in air than under water?
cause its easier for sound waves to travel through air than through liquid
Why is it more difficult to move through water in a swimming pool?
No harder than it would be to move through water elsewhere.
Why does water move through gravel than clay?
Because gravel has gaps that the water can travel through and clay is less likely to although water can still travel through it but slower
Why does objecs move faster in hot water than in cold water?
Heat is the vibration of atoms, so atoms move faster. That's why you can clean things easier in hot water and why smells travel faster in a warmer room.
Why does water move more slowly through clay than through humus?
Clay has very small pore spaces
Why is turning a door knob easier than turning an axle?
Because the torque is less. The door knob has less to move, through a smaller resistance, than an axle, which usually turns a wheel to move (for example) a car.
Is it true that sound travels more slowly in air than in water?
yes it does because air is easier to travel through
What are similarities and differences between a sound waves and water waves in terms of medium?
Sound waves can move through almost any medium, although it moves more slowly through solid medium than gaseous. Water waves can move only through air or water.
Does cold water drain faster than hot water?
no hot water will drip faster than cold water.This is because the molecules in hot water move around faster than in cold water. This makes it easier for molecules in hot water to slip right past other
