What is the meter currently defined as?

Exploring the Origins of the Metric System

Interactive Video
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Science
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6th - 10th Grade
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Hard

Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The length of a pendulum swinging once per second
The distance light travels in 1/299,792,458ths of a second
One ten millionth the distance between the North Pole and the equator
The length of a platinum bar
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why did the French people demand a fix to their system of weights and measures?
They wanted to adopt the English system
They were inspired by the American Revolution
The existing system was confusing and inconsistent
They wanted to increase trade with Spain
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the initial idea for defining the meter?
The length of a man's arm
The length of a pendulum swinging once per second
Three pieces of barley laid end to end
The distance light travels in one second
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What method did Méchain and Delambre use to measure the meter?
Using a platinum bar
Using a 1000-km tape measure
Marking a series of triangles across France
Measuring the length of a pendulum
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What tool did Méchain and Delambre use for their measurements?
A pendulum
A 1000-km tape measure
A platinum bar
The repeating circle
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the main problem with the original measurement of the meter?
The pendulum method was inaccurate
The curve of the Earth is not smooth
The Earth was assumed to be a perfect circle
The platinum bar was too short
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did scientists adjust the meter after discovering the inaccuracies?
They used a 1000-km tape measure
They used a different line to measure
They combined new triangulations with older measures
They redefined it based on the length of a pendulum
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