Answer:
One of the harder ideas to grasp in fusion is that nuclei, which, because of their electric charge, strongly repel at long range
(compared to the size of a nucleus), can strongly attract at short range. This activity allows students to explore a similar situation in
which
the magnetic interaction provides the repulsion (similar to the electric interaction within
the nucleus) and Velcro provides an attractive force at short range (similar to the nuclear
strong interaction).
Step-by-step explanation: