What is the primary unit of time measurement discussed in the video?
President Kabila votes in DRCongo election

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Other
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1st - 2nd Grade
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Second
Hour
Millisecond
Minute
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a second defined in terms of atomic properties?
By the flow of water
By the rotation of the Earth
By the vibration of cesium atoms
By the movement of the sun
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a common application of seconds?
Cooking recipes
Measuring distances
Scientific experiments
Timing sports events
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are seconds important in scientific experiments?
They help in measuring weight
They determine the color of light
They provide precise time intervals
They are used to calculate speed
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of a second in everyday life?
It helps in determining the weather
It is used to schedule daily activities
It calculates the area of land
It measures the height of buildings
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