Inv4.Exp2 Vocabulary

What is a field in physics?

• A physical quantity with a single value for all points
• A physical quantity with different values for each point in space and time
• A mathematical equation without spatial components
• A constant value that never changes

Which best describes a scalar field?

• A function that assigns a direction to every point
• A function that assigns multiple numbers to each point
• A function that assigns a single number to every point in space
• A function that only works in three dimensions

What distinguishes a vector field from a scalar field?

• Vector fields only exist in 2D space
• Vector fields have both magnitude and direction at each point
• Vector fields are always constant
• Vector fields only measure temperature

What type of particles does an electric field surround?

• Only neutral particles
• Only magnetic particles
• Electrically charged particles
• Only metal particles

What is the primary characteristic of a conductor?

• It completely blocks electrical flow
• It allows electricity to flow through it
• It only conducts heat, not electricity
• It only works with direct current

What is the defining feature of a uniform field?

• It varies with position
• It changes with time only
• It remains constant in space
• It only exists in metals

How is curvature best defined in physics?

• A straight line that never changes direction
• A gradual change in direction from point to point
• A sudden change in direction
• A constant angle of rotation

What creates a gravitational field?

• Electric charges only
• Magnetic materials only
• Mass or groups of masses
• Only moving objects

What is the primary function of a capacitor?

• To generate electricity
• To store electric charge
• To conduct electricity
• To create magnetic fields

What happens to a charge when placed in an electromagnetic field?

• It experiences a force
• It disappears
• It becomes neutral
• It changes into energy