10.2 Charge Distribution: Friction, Conduction, and Induction

• What is the definition of charge distribution?

  How electric charge is spread
• What happens to electrons in induction without direct contact?

  They redistribute within a conductor
• What type of charge does induction create relative to the source charge?

  Opposite
• Conduction requires direct contact between two charged objects


  True
• Conduction results in the same type of charge as the source

  True
• What happens when a glass rod is rubbed with silk?

  The glass becomes positive
• In conduction, electrons transfer through direct contact
• What happens when a balloon is rubbed on hair?

  The balloon becomes negative
• The charge on the conductor surface in induction is opposite to the source charge


  True
• What is induction as a method of charge transfer?

  Charge redistribution without contact
• What type of charge is created on the conductor surface opposite to the source charge during induction?

  Opposite charge
• Order the three primary methods of charge distribution.

  1️⃣ Friction

  2️⃣ Conduction

  3️⃣ Induction
• What is the role of a conductor in induction?

  Electron redistribution without contact
• In friction, one material becomes positively charged while the other becomes negatively
• What happens when a positively charged metal rod touches another metal rod?

  Both become partially positively charged
• Friction involves the transfer of electrons through direct contact.

  False
• Friction occurs only between conductors

  False
• Match the method of charge transfer with its characteristic:

  Friction ↔️ Transfer of electrons by rubbing

  Conduction ↔️ Direct contact transfer of electrons

  Induction ↔️ Redistribution of electrons without contact
• In conduction, electrons move to equalize the charge
• Induction involves the redistribution of electrons
• When a positively charged rod is brought near a neutral metal ball, electrons in the ball move towards the rod
• In friction, electrons are transferred through rubbing
• What type of material is used in friction for charge transfer?

  Insulators
• Give an example of charging by friction.

  Rubbing a balloon on hair
• In induction, charges within a conductor are redistributed due to electrostatic forces
• What is the charge type on a conductor after induction when a negatively charged object is brought near it?

  Positively charged
• Friction involves the transfer of electrons through rubbing
• Friction occurs with insulators
• Steps for charge transfer through friction

  1️⃣ Two insulating materials are rubbed together

  2️⃣ Electrons transfer due to electron affinity

  3️⃣ One material becomes positively charged

  4️⃣ The other material becomes negatively charged
• What phenomena is based on charge transfer through friction?

  Static electricity
• In friction, two insulating materials become oppositely charged


  True
• What is the key characteristic of induction as a charge transfer method?

  No direct contact required
• What happens when a positively charged rod is brought near a neutral metal ball?

  Electrons move towards the rod
• Induction requires physical contact between the charged object and the conductor.

  False
• What is charge distribution in physics?

  Spread of charge on surface
• Conduction involves direct contact between two materials.


  True
• Match the method of charge transfer with its process.

  Friction ↔️ Rubbing two materials together

  Conduction ↔️ Direct contact transfer of electrons

  Induction ↔️ Redistribution of electrons without contact
• In conduction, the charge transferred is of the same type as the source.


  True
• Order the methods of charge distribution based on the type of material used.

  1️⃣ Friction (Insulators)

  2️⃣ Conduction (Conductors)

  3️⃣ Induction (Conductors)