History of Metric System

Which country is one of the few in the world that does not primarily use the metric system?

• Canada

• United States

• Australia

• France

What was the earliest known unit of measurement, which was based on the length of a forearm?

• Foot

• Inch

• Cubit

• Yard

What mathematical technique did French astronomers use to accurately measure distances across the French countryside without physically traversing them?

• Calculus

• Triangulation

• Astronomical observation

• Surveying with chains

What was the original definition of a "meter" established by the French astronomers?

• The length of a standard platinum-iridium bar.

• One ten-millionth of the distance from the North Pole to the Equator, measured along a specific meridian.

• The average stride length of a French soldier.

• The distance light travels in a vacuum in a specific fraction of a second.

What was the primary reason for the failure of NASA's Mars Climate Orbiter in 1999?

• A software bug in the navigation system.

• A miscalculation of the rocket's fuel consumption.

• A misconversion between imperial and metric units.

• An unexpected meteoroid impact.