Question

match the best statement that describes what is happening in each magnetic system shown.
pe: 7335.5 j pe: 968.6 j ke: 6380 j pe: 7001.2 j ke: 167 j
attracting force energy increases repelling force pe increases pe converts to ke as the magnet moves magnets were released; ke increases a force moved attracting objects.

Explanation:

1. For the card with PE: 7335.5 J (two magnets with like poles facing, repelling): High potential energy (PE) means repelling force-related PE is built up as repelling magnets are pushed together.
2. For the card with PE: 968.6 J (one magnet, one non-magnet): Low PE shows a force moved attracting objects (the magnet and non-magnetic material, with minimal stored energy after movement).
3. For the card with KE: 6380 J (magnets overlapping, moving): Kinetic energy (KE) comes from stored PE converting as the magnet moves.
4. For the card with PE: 7001.2 J (two repelling magnets, slightly separated): Lower PE than the first repelling pair means when repelling magnets are released, KE increases (PE decreases as they move apart, KE rises).
5. For the card with KE: 167 J (two attracting magnets, moving together): Low KE from movement of attracting magnets, where attracting force leads to increased energy of motion as they pull together.

Answer:

• PE: 7335.5 J → Repelling Force PE increases
• PE: 968.6 J → A force moved attracting objects.
• KE: 6380 J → PE converts to KE as the magnet moves
• PE: 7001.2 J → Magnets were released; KE increases
• KE: 167 J → Attracting Force Energy increases