Quick picks on magnetism

Exercise and reference answers

Questions

1. Question

   A suspended bar magnet points:

   Choices

   1. North to south
   2. East to west
   3. Up and down

   Correct choice

   North to south

2. Question

   The tilt of the needle from the horizontal is the:

   Choices

   1. Declination
   2. Angle of dip
   3. Elevation

   Correct choice

   Angle of dip

3. Question

   A magnet repels a substance that is:

   Choices

   1. Ferromagnetic
   2. Paramagnetic
   3. Diamagnetic

   Correct choice

   Diamagnetic

4. Question

   Alnico is used to make:

   Choices

   1. Permanent magnets
   2. Soft iron cores
   3. Glass lenses

   Correct choice

   Permanent magnets

5. Question

   Above its Curie point a ferromagnet becomes:

   Choices

   1. A conductor
   2. A paramagnet
   3. An insulator

   Correct choice

   A paramagnet

Instructions

Tap the correct answer before the round moves on.

Explanation