The pressure from the pump is greater than the pressure within the tyre
You can inflat a tire on a car without taking the tire off by simply pressing the valve that is at the side of the tire that is used in pumping air in the tire.
To pump air into a bike tire, first unscrew the cap on the valve of the tire. Then, attach the pump nozzle to the valve securely. Begin pumping air into the tire by pushing and pulling the pump handle. Check the tire pressure using a pressure gauge and stop pumping when the desired pressure is reached. Finally, remove the pump nozzle and screw the cap back onto the valve.
When air is pumped into a tire at a constant temperature, the pressure increases because the volume of the tire decreases as more air is added. This causes the air molecules to be more tightly packed together, resulting in higher pressure within the tire.
This question is neither a question, nor a statement, nor rational. Try again.
If you are using a regular pump that draws its air from the surrounding atmosphere, then yes you will be pumping oxygen(as well as a mix of other gases) into the tire. Oxygen is corrosive and flammable, and pumping pure O2 into your tires is a terrible idea. Plain air is about 75% nitrogen, which is fairly inert, and this is the preferred gas for pumping tires, as it is also the cheapest.
Your bike pump may not be pumping air properly due to a clogged valve, a damaged or worn-out pump head, or a leak in the pump or tire. Check these components to troubleshoot the issue.
Yes, of course it is. It is usually ordinary air pumped into the tire under pressure.
The energy was stored in the form of potential energy in the muscles of the person pumping up the tire. When the person exerts force on the pump, this energy is transferred to the air inside the tire, increasing its pressure and volume.
The air comes from the atmosphere. It is compressed by the pump and forced, through a valve into the tire.
Air rushes out because it is under pressure. Once there is no longer any pressure in the tire the air will stop flowing out. However there is still air in the tire it is just equal to the pressure outside.
To effectively use a tire pump to inflate your bike tires, follow these steps: Remove the cap from the valve on the tire. Attach the pump nozzle securely to the valve. Begin pumping air into the tire, making sure to check the pressure gauge periodically. Stop pumping when the desired pressure is reached. Disconnect the pump and replace the valve cap.
The original air in the tire is old and weak so new air pumped in is stronger because it's newer and faster ;) Just kidding, really though the pressure of the air in the tire compared to the pressure of the air applied to the valve stem is the determining factor to whether or not you will be pumping air in the tire or letting it out of the tire. 10psi in the tire and 20psi at the air chuck equals a 10psi difference, and if the air chuck is applied to the valve stem the tire will fill with 10psi more of air and will then equal 20psi in the tire if the 20psi air pressure can be maintained at the fill chuck by an air compressor. Why, because different pressures will want to equal themselves to each other if they are aloud to occupy the same area with the higher pressure always wanting to expand into the lower pressure area, like inside a tire.