Physics Girl: Exploring Magnetism and Credit Card Security

What was the main goal of the experiment conducted by Diana and her friends?

• To test the strength of different magnets

• To find the best credit card reader

• To erase the mag stripe on a credit card

• To compare chip and mag stripe technologies

Why was Diana surprised by the results of the magnet experiment?

• The magnets were too weak to erase the card

• The credit card was erased by a very small magnet

• The credit card was not erased at all

• The magnets damaged the card physically

What did Sammy Kamkar use to visualize the data on a mag stripe?

• A microscope

• Black iron oxide

• A magnifying glass

• A digital scanner

What is the magSpoof device capable of doing?

• Emulating mag stripe data

• Reading mag stripe data

• Erasing mag stripe data

• Encrypting mag stripe data

How does the magSpoof device differ from contactless credit cards?

• It uses a physical swipe

• It emulates mag stripe technology

• It requires a PIN for transactions

• It is more secure than contactless cards

What is a major security concern with mag stripe technology?

• It can be easily cloned using skimmers

• It requires a physical connection

• It can be easily erased by magnets

• It is expensive to produce

Why are chip cards considered more secure than mag stripe cards?

• They are less expensive to produce

• They change data with each transaction

• They are not affected by magnets

• They are made of stronger materials

What is a skimmer and why is it a threat to mag stripe cards?

• A device that reads chip data

• A device that clones mag stripe data

• A device that erases mag stripe data

• A device that encrypts mag stripe data

What is the main reason for encouraging the use of chip payments?

• They are more widely accepted

• They are more secure than mag stripe payments

• They are faster than mag stripe payments

• They are cheaper to process

What happens to the magnetic field strength as the distance from the magnet increases?

• It increases

• It remains the same

• It decreases

• It fluctuates