Answer:
When adding an ending to a verb, you sometimes have to change the spelling. Do change the spelling in the following situations: ... Ends with a single vowel before a consonant, but the stress is not on the last syllable.
Explanation:
A large magnet. A magnet, regardless of type, is quite heavy. Especially if it's a rather dense one because it'll weight more because of more mass occupying a small space. It's a magnet because of the box's attraction to the steel table rather than concrete. Magnets attract metals instead of concrete.