Quick Quiz Part 1
1. Neodymium magnets are a mixture of neodymium with _____ and _____.
A) Iron, boron
B) Iron, barium
C) Iridium, boron
D) Iridium, barium
2. Which of the following does NOT use neodymium magnets?
A) Earrings
B) Motors
C) Children's toys
D) Batteries
3. Neodymium is mixed with the element _____ to form didymium glass.
A) Iridium
B) Boron
C) Praseodymium
D) Potassium
Part 2
1. Why Neodymium magnets are so strong?
2. What is the use of magnetic sensor?
3. What are the use of Magnets in a seismograph?
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