Electricity Basics Quiz

Electricity Basics

• Materials that do not conduct electricity are called insulators.
• The flow of electric charge through a conductor is called electric current.

Units of Measurement

• The SI unit of electric potential difference is the volt (V).
• The unit of electric current is the ampere (A).
• The SI unit of electric charge is the coulomb (C).

Conductivity

• Copper has the highest conductivity to electric current.

Physics

• The speed of light in a vacuum is 299,792,458 meters per second (m/s).
• The phenomenon that explains the change in direction of light when it passes from one medium to another is called refraction.

Light Spectrum

• The color of light with the longest wavelength within the visible spectrum is red.