What are the Factors that affect resistors?

There are 4 different factors which affect resistance:

*The type of material of which the resistor is made.

*The length of the resistor.

*The thickness of the resistor.

*The temperature of the conductor.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me