QR Code — Questions and answers
Read the full story
What problem did Masahiro Hara see with the old barcodes?
Choices
- A: They were too colorful and distracting.
- B: They couldn't hold much information and were slow to scan. ✓
- C: They made a loud noise when scanned.
- D: They were too small to see easily.
Answer: B: They couldn't hold much information and were slow to scan.
From page 1
Why were the old UPC barcodes not good enough for a factory?
Choices
- A: They were too difficult to print.
- B: They could only store a little bit of information and made workers turn items around. ✓
- C: They were only good for food items.
- D: They were too big to fit on small parts.
Answer: B: They could only store a little bit of information and made workers turn items around.
From page 2
What kind of new code was Masahiro Hara trying to create?
Choices
- A: A code that used only colors.
- B: A code that looked like a long line.
- C: A two-dimensional code that could hold lots of information and be read from any direction. ✓
- D: A code that would make sounds when scanned.
Answer: C: A two-dimensional code that could hold lots of information and be read from any direction.
From page 3
What inspired Hara and Nagaya to create the 'finder pattern' for the new code?
Choices
- A: The stripes on a tiger.
- B: The black and white pieces on a Go board. ✓
- C: The spots on a ladybug.
- D: The lines on a road map.
Answer: B: The black and white pieces on a Go board.
From page 4
What was the main job of the three 'finder patterns' in the QR Code?
Choices
- A: To make the code look artistic and pretty.
- B: To help the scanner know which way the code is facing and how big it is. ✓
- C: To tell the code what color it should be.
- D: To hide parts of the code so no one could read it easily.
Answer: B: To help the scanner know which way the code is facing and how big it is.
From page 5
What special ability does a QR Code have if it gets a little damaged?
Choices
- A: It can fix itself completely.
- B: It can still be read perfectly even if up to 30% of it is messed up. ✓
- C: It will ask for a new code to be printed.
- D: It will change its pattern to a new one.
Answer: B: It can still be read perfectly even if up to 30% of it is messed up.
From page 6
What is the very first thing a scanner does when it sees a QR Code?
Choices
- A: It starts making a beeping sound.
- B: It tries to guess what information is hidden inside.
- C: It finds the three special patterns to know where the code is and how it's turned. ✓
- D: It asks a person for help to read the code.
Answer: C: It finds the three special patterns to know where the code is and how it's turned.
From page 7
How did the QR Code help the car factories in Japan when it was first used?
Choices
- A: It made the cars brighter and shinier.
- B: It helped them track parts faster and made fewer mistakes in the factory. ✓
- C: It taught the workers how to build cars better.
- D: It made the car parts much lighter.
Answer: B: It helped them track parts faster and made fewer mistakes in the factory.
From page 8
What important decision helped the QR Code become popular around the world?
Choices
- A: They made it into a fun game for kids.
- B: They started selling QR Code readers in every store.
- C: They let everyone use the QR Code technology for free without paying. ✓
- D: They changed the QR Code design to look like an animal.
Answer: C: They let everyone use the QR Code technology for free without paying.
From page 9
What is a QR Code mostly used for in the world today?
Choices
- A: Only for playing secret computer games.
- B: For many things like restaurant menus, paying for things, and event tickets. ✓
- C: To make cars drive themselves.
- D: To send messages only to outer space.
Answer: B: For many things like restaurant menus, paying for things, and event tickets.
From page 10