4. Let the remaining air out of the tube. You may want to invest in a tire valve tool, but a matchstick, or ink pen can be used to depress the schrader valve stem to do this. The valve stem is the small round piece of metal underneath the plastic cap where air is put into the tire.
Electromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light. The electromagnetic force is one of the four fundamental interactions in nature. The other three fundamental interactions are the strong interaction, the weak interaction, and gravitation.
What is physics? The dictionary definition of physics is âthe study of matter, energy, and the interaction between themâ, but what that really means is that physics is about asking fundamental questions and trying to answer them by observing and experimenting. Physicists ask really big questions like: How did the universe begin?