11.1 Electrostatics

    Cards (28)

    • The electrostatic force is a fundamental part of electrostatics.

      True
    • In contact charging, both objects end up with the same type of charge.
      True
    • The density of field lines shows the electric field strength.
      True
    • What type of charges do positive charges repel?
      Positive
    • What happens to a neutral object when a charged object is brought near it during induction charging?
      It becomes polarized
    • What do field lines indicate in an electric field?
      Direction of force
    • Field lines show the direction of force on a positive test charge.
    • Positive charges are attracted to negative charges.

      True
    • Steps in charging an object by friction
      1️⃣ Electrons transfer from one material to the other
      2️⃣ One material becomes positively charged
      3️⃣ The other material becomes negatively charged
    • Charging methods create imbalances of electrons, resulting in electrostatic charges.
      True
    • The strength of an electric field is measured by the electric field strength.
    • Match the material with its type:
      Copper ↔️ Conductor
      Rubber ↔️ Insulator
    • What type of charge is used in laser printers to attract toner?
      Electrostatic charge
    • In friction charging, rubbing two materials together causes electrons to transfer
    • Objects with the same charge type will repel
    • What does the density of field lines indicate in an electric field?
      Electric field strength
    • What are electrostatic charges?
      Static electric charges
    • What are the three main methods to charge objects?
      Friction, induction, contact
    • In charging by contact, electrons transfer from the charged object to the neutral object.
    • What do field lines indicate in an electric field?
      Force on a positive charge
    • Conductors have abundant free electrons.

      True
    • In electrostatic painting, charged paint particles are attracted to grounded metal surfaces.
    • The attraction and repulsion between electrostatic charges is called the electrostatic force.
    • What happens when a charged object is brought near a neutral object in induction?
      Polarization of charges
    • What governs the behavior of charged objects?
      Electrostatic force
    • What is the primary difference between conductors and insulators?
      Electron flow
    • What is static electricity caused by?
      Charge imbalance
    • Air purifiers use electrostatic precipitators to remove dust from the air.

      True