Rule on these bar magnet claims

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Cutting a bar magnet across halves the dipole moment of each piece.

2. Statement is true

   No

   Statement

   Cutting a bar magnet across also halves its pole strength.

3. Statement is true

   Yes

   Statement

   A permanent magnet does not lose its magnetism.

4. Statement is true

   No

   Statement

   Like poles attract each other and unlike poles repel.

5. Statement is true

   Yes

   Statement

   A freely suspended magnet settles pointing north and south.

6. Statement is true

   Yes

   Statement

   If one end has pole strength plus m the other has minus m.

7. Statement is true

   No

   Statement

   A magnet pulls every kind of metal towards itself.

Instructions

Tap true or false for each claim about a bar magnet and about cutting one across.

Explanation