Section 7.1: Fields

Question 1

What is a force field?

Answer 1

An area in which an object experiences a non-contact force.

Question 2

What are the two ways force fields can be represented?

Answer 2

Vectors

Diagrams with field lines

Question 3

What does the distance between field lines represent?

Answer 3

The strength of the force exerted by the field in that region.

Question 4

State 3 similarities between electric and gravitational fields

Answer 4

Follow an inverse-square law

Use field lines to be represented

Have equipotential surfaces

Question 5

State 2 differences between electric and gravitational fields

Answer 5

In gravitational fields, the force exerted is always attractive, while in electric fields it can be attractive or repulsive.

Electric fields act on charge, while gravitational fields act on mass.