Flashcards on Fundamental Measurement Techniques
Fundamental Measurement Techniques: A Student's Guide
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Measurement Techniques
14 cards
Card 1
Question: What is a eureka can used for in measurement?
Answer: Finding the volume of irregular solids by displacing water into a measuring cylinder.
Card 2
Question: How should you prepare a eureka can before placing a solid inside?
Answer: Fill it so the water level is above the spout, then let water drain until level is just below the start of the spout.
Card 3
Question: What must you do after placing a solid into a eureka can before reading the measuring cylinder?
Answer: Wait until the spout has stopped dripping, then measure the collected water volume.
Card 4
Question: When is a centimetre ruler appropriate and what other rulers might be used for different sizes?
Answer: A standard centimetre ruler is suitable for most lengths; metre rulers are used for large distances and micrometers for very small measurements like w
Card 5
Question: How should a ruler be positioned relative to the object being measured?
Answer: The ruler should be parallel to the object.
Card 6
Question: What technique can improve accuracy when individual features are hard to measure (e.g., water ripples)?
Answer: Measure the length of ten repeats (e.g., ten ripples) then divide by ten to get the length of one.
Card 7
Question: What should you do when taking repeated measurements of the same object?
Answer: Always measure from the same fixed point — mark or stick small markers on the object to align the ruler consistently.
Card 8
Question: Why must the ruler and object be at eye level when taking a reading?
Answer: To avoid parallax error, where the measurement appears to change based on viewing angle.
Card 9
Question: How do you align a protractor to measure an angle correctly?
Answer: Place the vertex at the centre mark of the protractor and line up the base line with one side of the angle.
Card 10
Question: After aligning a protractor, how do you read the angle?
Answer: Measure the angle between the other line and the scale on the protractor.