ch2 review

CH2 REVIEW

6 steps of scientific method and what they mean; match with milk bottle demo

2 types of observation and their difference

equivalents for kilometer, meter, millimeter, milliliter, liter, cubic decimeter

difference between mass and weight

difference between precision and accuracy

how many Sig figs? 1000 , 10.0 , 275 , 101020 265.80 0.0058

how many digits in answer - density if mass is12.84g and vol is 8.2mL

what are some density units?

Give an example of derived units.

Find the density in g/mL of an object that is 3kg and 60mL

What conversion factor would you use to change 45cm to m?

How do you find volume by displacement?

Scientific notation change 4.58 *10 ^–4 and 45,000,000,000

Multiply and divide the numbers above use sci notation

What is the density of water? How does oil compare?

Find the density (use sig figs)of block 2.5 * 3.1* 12.2cm if its mass is 125.68g. Float?

Find density(use sig figs) (empty graduate 46.89g, graduate with liquid is 58.12g (see picture at top of page)

Find % error(use sig figs) if Joe finds the density of lead is 8.9g/mL.

Find the volume(use sig figs) if density is 3.0 *10^-4g/mL and the mass is 4.0 * 10 ⁶g.

Find the mass if density is 2.5g/mL and the the volume is 2.0L.

****Find the density from the graph.

Direct or indirect proportion?

back of room: Read the dial balance, small graduate

1.3681cm + 25.27cm + 186.548cm =

these you should be able to do without a calculator:

(12 * 10¹⁴g) / (3*10⁵L) =

(4*10⁸cc) * (5*10⁶g/cc) =