Practice - Measurement of Length
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Practice Questions
Test your understanding with targeted questions
What is the least count of a metre scale?
💡 Hint: Think about how many small divisions you see on a standard ruler.
Name one instrument used to measure length.
💡 Hint: Consider the tools you would find in a school classroom.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the least count of a screw gauge?
💡 Hint: Remember the smallest division that a screw gauge can measure.
True or False: A vernier caliper can measure negative lengths.
💡 Hint: Think about what a negative length would even mean!
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Challenge Problems
Push your limits with advanced challenges
If you measured the lengths of three different books with a screw gauge to be 1.123 cm, 2.456 cm, and 3.789 cm, what is the total length? Express the answer in correct significant figures.
💡 Hint: Think about how to add values while keeping an eye on the least number of significant figures.
You obtain a reading of 5.46 cm from a vernier caliper, but find out later the instrument was misaligned and the least count was actually 0.1 cm. How would you revise your measurement?
💡 Hint: Reflect on how misalignment impacts the quality of your measurements.
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