Physics for IGCSE & O level - Measurements And Units (Section 1 - No. 50)
When measuring length, what should be aligned?
The end of the ruler with the end of the object
The middle of the ruler with the end of the object
The end of the ruler with the middle of the object
Anywhere is fine
Explanation
The end of the ruler should be aligned with the end of the object to measure correctly.
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