Question

match the best statement that describes what is happening in each magnetic system shown.
pe: 7335.5 j pe: 7001.2 j pe: 968.6 j ke: 167 j ke: 6380 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 system with PE: 7335.5 J (magnets with opposite poles facing, close together): This is a high potential energy state from attracting forces being held apart; moving them closer reduces PE, so this matches "A force moved attracting objects."
2. For the system with PE: 7001.2 J (magnets with opposite poles, slightly farther than the first): The PE is lower than the first, as attracting objects moved closer, so this matches "Attracting Force Energy increases" is incorrect, wait correction: Wait, first system (7335.5 J) to 7001.2 J: PE decreases as attracting magnets move together. Wait no, let's re-analyze:

• System 1 (PE:7335.5 J): Magnets with opposite poles, separated. When you move attracting magnets closer, PE decreases. So this state is before moving, so when a force moves attracting objects closer, PE goes down. So System 1 (7335.5 J) → "Attracting Force Energy increases" no, wait: Repelling magnets: when you push repelling magnets together, PE increases. Attracting magnets: when you pull them apart, PE increases.

1. PE: 7335.5 J (attracting magnets pulled apart): This is high PE from attracting force work, so matches "Attracting Force Energy increases" (work done to pull them apart increases PE)
2. PE: 7001.2 J (attracting magnets closer than first): PE is lower, so this matches "A force moved attracting objects" (moved them closer, PE decreased)
3. PE: 968.6 J (repelling magnets pushed together, high PE for repulsion): Matches "Repelling Force PE increases" (work done to push repelling magnets together increases PE)
4. KE: 167 J (magnets just released, starting to move, low KE): Matches "Magnets were released; KE increases" (initial motion, KE starts to rise)
5. KE: 6380 J (magnets moving fast, high KE): Matches "PE converts to KE as the magnet moves" (PE is converted to high KE as they move)

Corrected precise matching:

• PE: 7335.5 J → Attracting Force Energy increases (work done pulling attracting magnets apart increases their potential energy)
• PE: 7001.2 J → A force moved attracting objects (force moved attracting magnets closer, reducing PE from the higher state)
• PE: 968.6 J → Repelling Force PE increases (work done pushing repelling magnets together increases their potential energy)
• KE: 167 J → Magnets were released; KE increases (magnets just started moving, kinetic energy is beginning to build)
• KE: 6380 J → PE converts to KE as the magnet moves (potential energy has been converted to a large amount of kinetic energy as the magnets move freely)

Answer:

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