Inv4.Exp2 Test

What is a field in physics?

• A region of space where physical quantities are measured with instruments
• A region of space where a physical quantity is assigned to every point
• A region of space where only vectors can exist
• A region of space where only scalars can exist

Which of the following best describes a scalar field?

• A field where vectors represent physical quantities
• A field where tensors represent physical quantities
• A field where a number represents the physical quantity at each point
• A field where only forces can be measured

What characteristic of fields demonstrates they are real physical entities?

• They can only be seen with special equipment
• They require instruments to exist
• They occupy space and contain energy
• They only exist in laboratory conditions

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
• A material that converts electricity to heat

How do unbalanced charges behave on a conductor?

• They remain stationary
• They move inward
• They spread out across the surface
• They concentrate at the center

What is the relationship between electric field and conductor surface at equilibrium?

• The field is parallel to the surface
• The field is perpendicular to the surface
• The field is diagonal to the surface
• The field has no specific orientation

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
• Charges only accumulate on flat surfaces

Why is charge repulsion least effective on highly curved surfaces?

• Because charges can't exist on curved surfaces
• Because curved surfaces have less surface area
• Because like charges attract on curved surfaces
• Because the curvature affects how charges can distribute

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

What type of acceleration does a charged particle experience between parallel charged sheets?

• Variable acceleration
• Zero acceleration
• Exponentially increasing acceleration
• Constant acceleration