1. IPC-Lab. Equipment & Safety
See handout

2. Lab Safety
See Handout

3. Metric System Called the SI (International System of Units)
Used by scientists and most of the world
Based on multiples of 10

4. Prefixes prefix symbol meaning kilo k 1,000 or 103 hecto h 100 or 102
deka da
basic units g,L,m 1
deci d or 1/10
centi c or 1/100 or 10-2
milli m or 1/1,000 or 10-3

5. Converting Metric Units
6493 m to km
k stand for kilo which means 1000
6.493 km
Which is thousand meters or 6493 m

6. Converting prefix to prefix
57 dg to hg
57dg 0.1g 1hg dg 100g
0.057 hg

7. Why should I do it that way?
When learning a new method, it is best to try it out on something simple.
If you know how to move the decimal to convert between metric units, you can use that to check your work and make sure that you are doing the method correctly!
How many seconds are there is 2.5 decades?

8. Converting prefix to prefix
0.63 daL to cL
630 cL

9. Converting prefix to prefix
hm to mm
836 mm

10. Length
Distance from one point to another
Basic unit is the meter, m

11. IPC-Lab. Equipment & Safety
Length
Instrument – ruler, meterstick, calipers
Based on the speed of light
Record all marked decimal places and then estimate the next decimal place.
For use that is usually 2 places

12. Volume Amount of space something takes up
Basic unit is the cubic meter, m3

13. Liquid Volume
Measured in Liters, L
1 mL = 1 cm3

14. Liquid Volume Instrument – graduated cylinder
Readings are one place after the decimal point for our 100 mL graduated cylinders, 2 for our 10 mL

15. Solid Volume Regular Shape Equation V= l x w x h (rectangular)
Instrument – ruler
Units – cm3

16. Solid Volume
Example 1
What is the volume of a rectangular solid of the width is 4 cm, the height is 2 cm and the length is 7 cm?

17. Solid Volume Irregular Shape Method is called Water Displacement
Instrument – graduated cylinder

18. Solid Volume Irregular Shape
V = mL of grad. with object – mL of grad w/o object

19. Solid Volume
Example 2:
The volume of water in a graduated cylinder is 45.3mL. A fishing weight is slowly lowered into the grad. to prevent splashing. The new volume of the graduated cylinder is 69.7mL. What is the volume of the fishing weight?

20. Solid Volume
Example 3:
A large rock is lowered into an overflow can. The water that flows out of the spout is collected in a graduated cylinder and the reading is 69.8 mL. What is the volume of the rock?

21. Mass Amount of matter in an object Basic unit – kilogram
Instrument – balance

22. Mass Based on a sample of platinum and iridium
Readings are two places after the decimal point

23. Temperature How hot or cold a substance is
Average kinetic energy of an object
Unit is Celsius

24. Temperature Instrument - thermometer
Based on boiling point (100oC) and freezing point (0oC) of water
Readings are one place after the decimal point

25. Time Particular moment or the interval between two events
SI unit is seconds