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Course: Middle school physics - NGSS > Unit 2

Lesson 4: Magnetic forces
Science
Middle school physics - NGSS
Forces at a distance
Magnetic forces
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Understand: magnetic forces

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Problem

Ade is studying magnets. He notices that one of his magnets, magnet A, will attract a metal nail at distances of 3 cm and 6 cm. Ade tries the same test with a second magnet, magnet B. The nail moves toward magnet B at a distance of 3 cm, but not at 6 cm.
What conclusion can be made from Ade’s tests?
Choose 1 answer: