What you see as lightning is air that has been superheated until it glows by an electric charge travelling through it. In a vacuum there is no air, thus no visual.
Yes, in general friction can occur in a vacuum, but the only kind of friction that doesn't occur in a vacuum is, of course, air friction. There is no drag force on an object falling in a vacuum.
Conduction cannot occur within a vacuum because it requires a substrate (i.e. matter) for energy to be transferred.
No, lightning cannot stop a tornado. Lightning and tornadoes are independent weather phenomena. Lightning can occur during thunderstorms, which are often associated with tornadoes, but it does not have the ability to influence or stop a tornado.
lightning bolts occur in the clouds.
Conduction cannot occur within a vacuum because it requires a substrate (i.e. matter) for energy to be transferred.
Radiation is the primary method of energy transfer that can occur in a vacuum. This includes the transfer of thermal energy (heat) through electromagnetic waves like infrared radiation. Conduction and convection, which depend on the presence of a medium to transfer energy, cannot occur in a vacuum.
Conduction requires the presence of a medium such as solid, liquid, or gas for heat transfer to occur. In a vacuum, there are no particles to transfer heat energy through collisions, so conduction cannot take place. Heat can only be transferred in a vacuum through radiation.
Conduction and convection cannot occur in a vacuum or in space because they both require a medium, such as a solid, liquid, or gas, for heat transfer to take place. In a vacuum or in space, heat can only be transferred through radiation, which does not require a medium.
no
Lightning does occur in different places, but many more times then 2!
If thunder and lightning occur together close to you, you are dangerously close to a lightning bolt.
If thunder and lightning occur together close to you, you are dangerously close to a lightning bolt.