Question

3 examine source 2. then, fill in the blanks to complete the sentences. not all answer choices will be used. at the beginning of the video, the two magnets square each other. then, after one magnet is reversed, the magnets square each other. this shows that magnetic force depends on the square of magnetic fields. attract neutralize repel color direction

Explanation:

1. At the start, like - poles repel? No, wait, when two magnets are brought initially (assuming like in typical magnet demos), if they attract first? Wait, no, let's think: when you have two magnets, if opposite poles are facing, they attract. Then when one is reversed (so like poles face), they repel. And magnetic force depends on the direction (orientation) of the magnetic fields (since reversing changes the interaction from attract to repel, which is about the direction of the fields). So first blank: attract (if initial was opposite poles), then after reversing, repel. Third blank: direction. Wait, let's check the options. Options: attract, neutralize, repel, color, direction. So first sentence: "At the beginning of the video, the two magnets [attract] each other." Then "after one magnet is reversed, the magnets [repel] each other." "This shows that magnetic force depends on the [direction] of magnetic fields." Because reversing the magnet changes the direction of its magnetic field, so the interaction changes from attract to repel. Neutralize is not right, color is irrelevant. So the blanks are attract, repel, direction.

Answer:

First blank: attract
Second blank: repel
Third blank: direction