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4 cards from this section. Quick, good the night before a test.
What does SI stand for?
Think about the standard measurements used worldwide.
What is a vernier caliper used for?
Remember its accuracy compared to a ruler.
Why do scientists prefer SI units?
Think about why global standards matter.
True or False: Mass and weight are the same thing.
Consider the definitions of both terms.
If a person's mass is 70 kg on Earth, what will be their weight on Mars, given Mars' gravity is about 3.71 m/s²?
Use the weight formula: Weight = Mass x Gravity.
Discuss the implications of using different units of measurement in scientific research. What could be the potential errors that arise?
Consider examples from the chapter.
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