Question

wednesday independent review worksheet
name _ date _
multiple choice select the choice that best completes the statement or answers the question.

1. _____ is best described as the amount of mass per unit of volume.

a. mass b. density c. volume d. matter

1. _____ is the quantity of matter in an object.

a. volume b. density c. weight d. mass

1. _____ is the amount of space occupied by an object.

a. mass b. volume c. density d. matter

1. which of the following is the correct formula used to calculate density?

a. d = m/v b. m = d/v c. d = mv d. v = d/m

1. which of the following is/are the correct unit(s) for density?

a. g/ml b. ml/cm³ c. g/cm³ d. both a and c

1. cooking oil has a mass of 36g and a volume 20 ml. what is the density of the oil?

a. 1.8 g/ml b. 55 g/ml c. 56 g/ml d. 720 g/ml

1. a wooden block has a mass of 55 g and a volume of 64 cm³. what is the density of the block?

a. 119 g/cm³ b. 1.16 g/cm³ c. 0.86 g/cm³ d. 3520 g/cm³

1. which of the following is/are the correct unit(s) for volume?

a. ml b. cm³ c. g d. both a and b

1. which of the following is the correct density of water?

a. 1.0 g/ml b. 1.5 g/ml c. 0.5 g/ml d. 2.0 g/ml

1. a cube of an unknown substance has a mass of 115g. it is determined that one side of the cube is 8 cm. what is the density of the cube?

a. 14.38 g/cm³ b. 4.45 g/cm³ c. 0.22 g/cm³ d. 920 g/cm³

Explanation:

Step1: Recall density - mass - volume relationship

Density formula is $d=\frac{m}{V}$, where $d$ is density, $m$ is mass and $V$ is volume.

Step2: Answer question 1

Density is mass per unit volume. Answer: a. Density

Step3: Answer question 2

Mass is the quantity of matter in an object. Answer: d. Mass

Step4: Answer question 3

Volume is the amount of space occupied by an object. Answer: b. Volume

Step5: Answer question 4

The correct formula for density is $d = \frac{m}{V}$. Answer: a. $d=\frac{m}{V}$

Step6: Answer question 5

Common units for density are $g/mL$ and $g/cm^{3}$. Answer: d. Both A and C

Step7: Answer question 6

Given $m = 36g$ and $V=20mL$, $d=\frac{m}{V}=\frac{36g}{20mL}=1.8g/mL$. Answer: a. $1.8g/mL$

Step8: Answer question 7

Given $m = 55g$ and $V = 64cm^{3}$, $d=\frac{m}{V}=\frac{55g}{64cm^{3}}\approx0.86g/cm^{3}$. Answer: c. $0.86g/cm^{3}$

Step9: Answer question 8

Common units for volume are $mL$ and $cm^{3}$. Answer: d. Both A and B

Step10: Answer question 9

The density of water is $1.0g/mL$. Answer: a. $1.0g/mL$

Step11: Answer question 10

Volume of cube $V=s^{3}$, with $s = 8cm$, so $V=(8cm)^{3}=512cm^{3}$, $m = 115g$, $d=\frac{m}{V}=\frac{115g}{512cm^{3}}\approx0.22g/cm^{3}$. Answer: c. $0.22g/cm^{3}$

Answer:

1. a. Density
2. d. Mass
3. b. Volume
4. a. $d=\frac{m}{V}$
5. d. Both A and C
6. a. $1.8g/mL$
7. c. $0.86g/cm^{3}$
8. d. Both A and B
9. a. $1.0g/mL$
10. c. $0.22g/cm^{3}$