Question

1. cecilia puts two magnetic toy trains very close to each other on a track. what will happen next, and why?

the trains will not move because the magnets are not touching.
the trains will move closer to each other because the magnetic force will pull the trains together.
the trains will move away from each other because the magnets are not touching.
the trains will move away from each other because the magnetic force will push the trains apart.

Explanation:

Magnetic force can act at a distance. If the poles of the magnets on the trains are opposite, they attract (pull together); if the same, they repel (push apart). Option b assumes attraction (pull) which is a valid magnetic force action. Options a and c wrongly assume no movement or movement due to non - touching (magnetic force can act without contact). Option d assumes repulsion (push) but there's no info given about pole orientation to confirm repulsion, while option b is a general valid statement about magnetic force (pull) acting at a distance.

Answer:

b. The trains will move closer to each other because the magnetic force will pull the trains together.