How GPS Was First Built as a Military Tool — Questions and answers

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What happened when Zaire opened The Invention Encyclopedia?

Choices

  1. He found a map hidden inside.
  2. The room dissolved into swirling colors. ✓
  3. His aunt called him from downstairs.
  4. A loud alarm started ringing.

Answer: The room dissolved into swirling colors.

From page 3

What was the main reason the Navy needed the Transit system?

Choices

  1. To find lost pirate ships.
  2. To know the exact location of their submarines. ✓
  3. To communicate with people on other planets.
  4. To help fish find their way in the ocean.

Answer: To know the exact location of their submarines.

From page 5

What special type of clock did Roger Easton suggest using in the satellites?

Choices

  1. Grandfather clocks
  2. Digital clocks
  3. Atomic clocks ✓
  4. Water clocks

Answer: Atomic clocks

From page 6

When was the first GPS test satellite scheduled to be launched?

Choices

  1. 1973
  2. 1978 ✓
  3. 1995
  4. Next year

Answer: 1978

From page 7

How many satellites were needed for the GPS system to have full global coverage?

Choices

  1. 12 satellites
  2. 24 satellites ✓
  3. 100 satellites
  4. Only a few satellites

Answer: 24 satellites

From page 8

What did Zaire realize about GPS when he was back in his room?

Choices

  1. It was only for military use.
  2. It was very easy to create.
  3. It started for the military but now helps everyone. ✓
  4. He didn't learn anything important.

Answer: It started for the military but now helps everyone.

From page 9

How much money does the GPS industry generate per year today?

Choices

  1. Over 12 billion
  2. Over 40 billion ✓
  3. A few million dollars
  4. Less than 1 billion

Answer: Over 40 billion

From page 10