Each vector field shown represents the force on a particle at different points in the plane as a result of another particle at the origin. Match each vector field with its description.

 1. A repulsive force whose magnitude increases as distance increases.

 2. A repulsive force whose magnitude decreases as distance increases.

 3. An attractive force whose magnitude increases as distance increases.

 4. An attractive force whose magnitude decreases as distance increases.

 
 
A
 
B
 
C
 
D

(Click on a graph to enlarge it.)

You can earn 50% partial credit for 2 - 3 correct answers.