Inv4.Exp2 Text B

What is a conductor in terms of electrical properties?

• A material that blocks electric charges
• A material through which electric charges can easily move
• A material that stores electric charges indefinitely
• A material that converts electricity to heat

How do unbalanced charges behave on a conductor's surface?

• They cluster together at the center
• They remain stationary
• They repel each other and spread out
• They move randomly across the surface

At equilibrium, how is the electric field oriented relative to a conductor's surface?

• Parallel to the surface
• At a 45-degree angle
• Perpendicular to the surface
• In random directions

How does a conductor's shape affect charge distribution?

• Charges concentrate in regions of least curvature
• Charges distribute evenly regardless of shape
• Charges concentrate in regions of greatest curvature
• Shape has no effect on charge distribution

What characterizes a uniform field?

• Varying field strength and random field lines
• Evenly spaced field lines and constant magnitude
• Decreasing magnitude over distance
• Curved field lines and varying magnitude

How can a uniform electric field be generated?

• By using two point charges
• By placing an excess charge on a large metal sheet
• By creating a magnetic field
• By using alternating current

In a uniform electric field, how does force on a charge relate to distance?

• Force increases with distance
• Force decreases with distance
• Force does not depend on distance
• Force oscillates with distance

What is the gravitational field?

• A scalar field measuring mass
• A vector field of gravitational force per mass
• A magnetic field near Earth's surface
• An electric field in space

What is a capacitor?

• A device that generates electricity
• A device that converts electrical energy to mechanical energy
• A device that stores electrical energy between parallel sheets
• A device that measures electric current

How are opposite charges created on capacitor plates?

• By rubbing the plates together
• By connecting them to a battery's terminals
• By exposing them to radiation
• By heating the metal sheets