Question

the images below show four pairs of magnets. the magnets in different pairs do not affect each other. all the magnets shown are made of the same material, but some of them are different sizes and shapes. think about the magnetic force between the magnets in each pair. select the pair with the magnetic force of greatest magnitude.

Explanation:

Step1: Recall magnetic - force principle

The magnetic force between two magnets decreases with the increase of the distance between them.

Step2: Compare distances

Pairs 1 and 3 have a distance of 8.1 mm, while pairs 2 and 4 have a distance of 16.8 mm. Since 8.1 mm < 16.8 mm, the force in pairs 1 and 3 is greater than that in pairs 2 and 4.

Step3: Analyze magnetic - pole alignment

In pair 1, the N - S poles are facing each other (attractive force). In pair 3, the S - S poles are facing each other (repulsive force). The magnitude of the attractive force between N - S poles is generally greater than the magnitude of the repulsive force between like poles for the same - distance magnets.

Answer:

Pair 1