Electricity and Magnetism Midterm

Cards (130)

  • In Ancient Egypt
    Electric catfish was called the Thunderer of the Nile and appeared in carving dating from 2725 BC
  • What was the first attempt to use electrical energy?
    In medicine
  • Greeks, Romans, and Egyptians used electric fish to treat headache, mental illness, and gout
  • Anteros, the freed slave of Caesar Augustus decided for a walk in the beach and felt shock. The source of the shock is from the live torpedo ray.
  • Thales of Miletus
    Discovered static electricity.
  • William Gilbert
    The term electricity was coined from Greek word of amber. Who did it?
  • Leyden jar
    Device for storing static electricity
  • Pieter Van Musschenbroek
    Discovered Leyden jar
  • Leyden jar
    Device that can store an electric charge
  • Benjamin Franklin
    Was most credited for discovering electricity in 1752
  • Benjamin Franklin
    Famous kite experiment
  • Alessandro Volta
    Developed the first electric battery known as voltaic pile
  • Electricity wasn't solely based by animals, it can also be produced by chemical reactions and made to travel in circuit
  • Michael Faraday
    Developing the idea of magnetic field
  • Thomas Edison
    Inventor of the light bulb
  • Nikola Tesla
    Edison's rival. Worked before at the French branch of Edison's company. Developed AC
  • Electricity
    The interaction or the flow of electric charges through a conductor
  • Electric Charge
    A fundamental physical property that causes object to feel attractive or repulsive force
  • Two components of Electric Charges
    • Magnitude
    • Polarity
  • Magnitude
    Describe its strength
  • Polarity
    Determines how it will interact with other charges
  • Polarity
    Determines how it will interact with other charges
  • Two Charged Polarities according to Benjamin Franklin
    • Positive Charge
    • Negative Charge
    • Neutral
  • Electron
    • Located on outer edges
    • Creates a net negative charge
  • Q
    Electric charges is designated by what letter?
  • +q
    Excess number of positive charge, fewer electrons
  • -q
    Excess number of negative charges, more electrons than protons
  • Two negatively charged objects, repel
  • Two positively charged objects, repel
  • A negatively and a positively charged objects, attract
  • Static Discharge
    • Conduction
    • Induction
    • Friction
  • Friction
    One object rubbing against another
  • Conduction
    Direct contact
  • Induction
    No direct contact (through an electric field)
  • How to identify which object will lose or gain electrons?
    Triboelectric series
  • Triboelectric series
    A list of materials in order according to their tendency to lose or gain electrons
  • Charge affinity
    Use to identify the amount if love a material has
  • The objects on the higher will mostly like lose and give up electrons and become positive
  • Static Electricity
    • Build up of electric charge
    • It does not flow
    • It is stored
  • Current Electricity
    • Electricity that moves and are in state of motion