Question

Question 8
Magnets are made primarily of iron, nickel, and gold.

True
False
Question 9
Which of the following are uses of magnets (Select all that apply)

a
Bird Migration
b
MRI machines
c
Creating energy
d
Maglev train

Answer 1

**Question 8:**
**False**. Magnets are primarily made of iron, nickel, and cobalt, not gold.

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**Question 9:**
The uses of magnets include:

- **a** Bird Migration (True, birds are thought to use Earth's magnetic field for navigation)
- **b** MRI machines (True, magnets are essential in MRI technology)
- **c** Creating energy (True, magnets are used in generators to create electricity)
- **d** Maglev train (True, magnetic levitation trains utilize magnets for propulsion)

So, all options are valid uses of magnets: **a, b, c, d**.