Measurement, etc.
Complete the following questions in order on notebook paper.

From you own knowledge, if a bowling ball and a baseball where both dropped at the same time from the same distance, which would land first.  Briefly tell why?

Read Table 1-1 on p. 5.  Then, give a specific example from the everyday things around you of mechanics, thermodynamics, wave phenomena, optics, and electromagnetism.

What is meant by a “controlled” experiment?

What does “SI” stand for?  What are the SI units for length, mass and time?

Distinguish between accuracy and precision. How do these terms relate to the use of significant figures?

Explain why it would appropriate to measure the distance to Dallas in km and the length of your nose would be better measured in cm.

Examine a meter stick. What are the metric units denoted by the numbers?

What fraction of these units does the smallest marking represent?

If the length of the object being measured falls between one of these marks, how can the length of the object be described?

Define “significant digits.”  What are the rules of what is “significant” and what isn’t?

Why is it important to use significant digits in recording and calculating data?

Measure three objects in the room and write down their lengths to the greatest degree of accuracy.  (Check with the teacher to be sure that you are writing them down correctly.)

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