Electric Fields

What is the unit of an electric field?

• Coulombs per Newton

• Newtons per Coulomb

• Joules per Coulomb

• Coulombs per Joule

Why do electric field and electrostatic force vectors align for a positive charge?

• Because they are both positive

• Because they are both negative

• Because they are both vectors

• Because they are both scalars

How does a negative charge affect the direction of the force in an electric field?

• It doubles the force

• It does not affect the direction

• It makes the force and field direction the same

• It reverses the direction of the force

What happens to the electric field around a positive point charge as distance increases?

• It increases in magnitude

• It remains constant

• It changes direction

• It decreases in magnitude

How do electric field lines behave around a negative point charge?

• They form circles

• They point radially inward

• They do not exist

• They point radially outward

What is a similarity between electric fields and gravitational fields?

• Both are measured in Newtons

• Both are vector fields

• Both are scalar fields

• Both are measured in Coulombs

What does a higher density of electric field lines indicate?

• Lower electric field strength

• Higher electric field strength

• Constant electric field strength

• No electric field strength