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Showing revision 4
Name: ____________________________ Period: _______
Answering the following questions showing all work.
Part 1: Lab Safety and Equipment
1) State the name, function, and location of the Emergency shower? What is the issue/problem with pulling the handle on this device?
2) What is the lab safety device that must be put on before you start any labwork, keep on until you leave the lab? Where can these items be found in the room and what is the name of the device that stores/keeps them?
3) Is it ok to eat food while you are doing a lab ? Yes or No (Circle answer).
Part 2: Memorizing Measuring Base Unit Table and Metric system Table
4) What is the name of the base unit for mass?
5) Fill in the following blanks: ________ cm = _____m
6) What is the symbol/unit for temperature?
7) What is the unit for 1E-12 ?
8) What is the name for base unit of amount of substance?
9) What is the name of 1000 (or 1E3)?
10) Fill in the following blanks: ________ nm = _______m (need to use scientific notation for numbers in blanks).
Part 3: Measuring and Significant Figures
11) What do you call what you write when you use your 5 sense in a lab?
12) Define precision.
13) How is accuracy different than precision?
14) How is a qualitative observation different than a quantitative observation?
15) Using the Significant figure system of measuring observation, why is it important that one has both accuracy and precision? Hint: are you sure about that results?
16) Unlike math, every number is not "significant", why?
17) When you are measuring something using significant figure system, what is the definition of "significant figure"?
18) Going to the Station out in the lab area, complete the following:
18a) Station A :Description: _______________ Measurement: _______
18b) Station B : Description: _______________ Measurement: _______
19) When you are reading someone else's number, all digits are "known" except _____?
20) How many sig figs does 0.03040g have ________?
Explain why each digit is significant (using number system in notes?
21) How do you show 2100g with 3 sig figs? ________________
Fundamental Principles and Particles (Base units)