WONDER #1021: How Do Metal Detectors Work?
Question 1 of 3
What device is used to detect metal objects hidden from sight?
- metal detector
- tuning fork
Question 2 of 3
Very low frequency technology is also known as what?
- electromagnetic field
- none of the above
Question 3 of 3
Metal detectors work by detecting a metal object’s what?
- very low frequency
- magnetic field
- atomic number
Check your answers online at https://www.wonderopolis.org/wonder/How-Do-Metal-Detectors-Work.