Quiz: Do you know how a Credit Card's Magnetic Strip Works?
by Staff
The magnetic strip on the back of a credit card contains a wealth of information. It works as a security measure to identify where your credit card is being used and contains sensitive data. See what you know about the magnetic strip on a credit card by taking this quiz.

What is another name for the magnetic strip on the back of a credit card?

  • magcredit
  • magstrip
  • stripcard

What type of metal are the magnets in the strip made from?

  • iron
  • aluminum
  • steel

How big is each iron particle in the strip?

  • 20 millionths of an inch (50.8 millionths of a centimeter)
  • 20 thousandths of an inch (50.8 thousandths of a centimeter)
  • 20 hundredths of an inch (50.8 hundredths of a centimeter)

In the account number printed on your card, what do the digits in the second through seventh positions represent?

  • system number
  • account number
  • bank number

Which of the following works in a similar way to the magnetic strip on a credit card?

  • record player
  • cassette tape
  • fridge magnet

How many tracks are there on the magstrip?

  • 2
  • 3
  • 4

What information does the magstrip contain?

  • account balance
  • account number
  • Social Security number

What happens when your credit card is swiped?

  • It needs to be authenticated.
  • The payment is transferred immediately.
  • A record of the transaction is made in the magstrip.

What is a common reason an ATM might not accept your card?

  • The ATM is broken.
  • Your account is overdrawn.
  • The magstrip is scratched.

How can a magstrip be erased?

  • exposure to magnets
  • exposure to sunlight
  • exposure to water