Practice Case Study (4.2) - Chapter 2 : Physical Quantities and Measurements

Practice: Case Study

Lesson 4.2Physical Quantities and Measurements

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9 questions

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6 sample questions

Question 1.
What is measurement?
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Think about how we express things in numbers.
Question 2.
Name a tool used for measuring length.
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Consider what you use in a science lab.
3Question 3.
Why was the Mars Climate Orbiter lost?
- Miscommunication with ground control
- Incorrect unit conversion
- Faulty sensors
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Recall the case study we discussed.
4Question 4.
True or False: Systematic errors can vary from measurement to measurement.
- True
- False
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Think about how systematic errors differ from random errors.
Question 5.
A physics laboratory is measuring the height of a tower using a measuring tape that has been incorrectly calibrated and consistently reads 1 meter shorter than the actual height. If the tower was measured to be 50 meters tall with this tape, what is the actual height of the tower?
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Consider how calibration affects accuracy.
Question 6.
During an experiment, a student records the temperature of a solution as 30°C, but the thermometer used has a systematic error of +2°C. What is the actual temperature of the solution?
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Think about how to adjust for systematic inaccuracies.

5 more questions in this section. Enroll free to practise them all.