Study Guide-----Chapter 2Test-----Wed. 10/19/16

Be able to calculate the volume of objects. (Length x Width x Height)(p. 9-12)

Example-4cm x 3cm x 12cm= 144cm3

1) 2 cm x 4cm x 6cm =______cm3 2) 3cm x 4cm x 5cm=______cm3

3) 2.4cm x 4cm x 6.2cm =______cm3 4) 7cm x 2cm x 2.5cm=______cm3

Be able to calculate for density, mass, or volume using one of the formulas below.(p. 8-16)

D = m/Vm =D x VV = m/D

**How do I know which formula to use??

Step 1: / From the problem find out what you are given and what you are missing. / Mass= 33g
Volume= 11cm3
Missing--Density
Step 2: / Choose the formula that begins with what you are missing. / D = m/V
Step 3: / Plug in numbers and units and solve. / D= 33g/11cm3
D= 3g/cm3

Directions: Given the mass, volume, or density of the following problems, calculate the missing value. Don’t forget units!!

Example- Mass = 24gWhat’s missing?!?

Volume = 8cm3 (Density)

1. Choose formula - D = m/V

2. Plug in numbers and units - 24g/8cm3

3. Do calculations with final units - 3g/cm3

D = m/Vm =D x VV = m/D

5) Mass = 45g

Volume = 15cm3

6) Volume = 26.5cm3

Density = 1.7g/cm3

7) Mass = 617g

Density = 9.4g/cm3

8) Find the density of a substance that has a volume of 88cm3 and a mass of 29.3g.

9) If a rock has a mass of 228g and a density of 2.1g/cm3, what is its volume?

10) What is Mr. Glodek’s mass if he has a density of 2.34g/cm3 and takes up 38,852cm3 of space?

Be able to know the 4 types of graphs (notes and ‘Graph’ powerpoint in Paxton’s website)

11) ______12) ______

13) ______14) ______

Be able to know the difference between independent and dependent variables (notes and ‘Graph’ powerpoint in Paxton’s website)

15) Independent variable-

16) Dependent variable-

**Review anything else from the packet that we covered**

Answers

1) 485) 3g/cm3 9) 108.57cm3 13) pie

2) 606) 45.05g 10) 90,913.68 g 14) line

3) 59.927) 65.64 cm3 11) scatterplot

4) .358) 0.33g/cm312) bar

15) The independent variable is the variable you believe might influence another variable.

(x axis)

16) Thedependent variable is the variable that you hope will change as a result of the experiment.

(y axis).