Measurement, units and uncertainty Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. Which of these is an SI base unit?
- A. newton
- B. kilogram
- C. joule
- D. pascal
2. Convert 0.35 km into metres.
- A. 0.35 m
- B. 35 m
- C. 3500 m
- D. 350 m
3. A balance reads 0.2 g with nothing on it, so every mass is 0.2 g too high. This is:
- A. a systematic error
- B. a random error
- C. an anomalous result
- D. a precise reading
4. Three timings are 12.1 s, 12.3 s and 12.2 s. What is the mean?
- A. 12.1 s
- B. 12.3 s
- C. 12.2 s
- D. 36.6 s
5. Which instrument is best for measuring 47 cm³ of a liquid?
- A. beaker
- B. conical flask
- C. stopwatch
- D. measuring cylinder