Name: Answer Key
Date:
Period:
Study Guide
Chemistry Test 2 - Measurements
Type of
Measurement
Units Used
Tools or Instruments
Used
List few things you can
measure
Length
m, km, mm, cm
Ruler, measuring tape,
trundle wheel
Thickness, height,
width, diameter, distace
Mass / Weight
Kg, g, mg, t, N
Triple beam balance,
digital scale, spring
scale
Different objects:
Food, people, book, etc
Volume
L, mL, cm3, m3, mm3
Graduated cylinder,
beaker, pipette,
Erlenmyer flask, ruler
Liquids, space solid
occupies, box (LxWxH)
Temperature
°C, K
thermometer
How hot or cold
something is … weather,
food temp.
Time
s, min, hr, day, week,
year
Clock, watch,
stopwatch, hour glass
Race, class time,
reaction time
Define the following terms:
Length - distance between two points
Meter – SI base unit for length
Ruler – A tool for measuring length
Volume – A measure of the space occupied by an object
Liter – SI base unit for volume
Graduated cylinder – tall, narrow container used for measuring a volume of a liquid in mL
Meniscus – The curved surface of a liquid in a container
Water displacement – A method of measuring volume by measuring how much liquid is pushed away
by an object
Mass – Measure of an amount of matter in an object
Weight – The gravitational pull on a given mass
Triple – beam balance – An instrument used for measuring mass in g
Gram – Base unit for mass
Density - The ratio of the mass of an object to its volume
10 mm 1. How many millimeters are in one centimeter? (Think about a metric ruler, how many little
lines are between each numbered centimeter?)
2. What type of measurement would each group of the following metric units be used for?
volume
a. mL, L, cm3
length b. m, cm, km
mass c. g , kg, mg
time d. s, min, hr
temperature e. °C, K
3. Record the measurement of the following line in centimeters and then in millimeters. (don’t forget units)
3.1 cm
31 mm
4. What is the volume in mL of the liquid in each of the following graduated cylinders? (don’t forget units)
2.8 mL
44 mL
7 mL
5. Determine the metric volume of the cube below. Remember – a cube is composed of six equal sides.
V=LxWxH
V = 1.3 cm x 1.3 cm x 1.3 cm = 2.197 cm3
2.2 cm3
V = 38 mL – 24 mL
6. What method for finding volume of an irregular shaped object
is depicted in the diagram to the right?
38 mL
Water displacemetn
7. Find the volume of the rock.
24 mL
14 mL
8. What do you call the curved, upper surface of water that commonly appears when using a graduated cylinder?
meniscus
9. What equation do you use to find the volume of a box?
V = Length x Width x Height
10. Find the volume of the boxes
(don’t forget the correct units)
40 cm3
305.3 cm3
11. What is the name of the instrument to the right? Triple beam balance
12. What is the instrument to the right used to measure? mass
13 a. What is the name of the instruments to the right? Graduated cylinder / beaker
13 b. What is the instruments to the right used to measure? volume
Graduated cylinder
beaker
14. What are the three ways you can write the density equation to be able to solve for density, mass or volume?
d = m/V
m=dxV
V = m/d
15. 500 grams of sugar occupies a volume of 0.315 L. What is the density of the sugar in g/mL?
1.6 g/mL
d = m/V
d = 500g / 315 mL = 1.587 mL
16. The density of a substance is 1.63 g/mL. What is the mass of 0.25 L of the substance in grams?
407.5 g
m=dxV
m = 1.63 g/mL x 250 mL = 407.5 g
17. The density of pure solid copper is 8.94 g/mL. What volume does 5 kg of copper occupy?
559.3 mL
V = m/d
V = 5000g / 8.94 g/mL = 559.3 mL
18. What is the mass of a 450 cm³ block of silicon if the density of silicon is 2.336 g/cm³?
1062 g
m=dxV
m = 2.36 g/cm3 x 450 cm3 = 1062 g
19. What is the mass of a 15 cm cube of iron if the density of iron is 7.87 g/cm³?
26561.3 g
m=dxV
m = 7.87 g/cm3 x 3375 cm3
m = 26561.25 g
20. What is the mass in grams in the diagram to the
right?
317.7 g
V=LxWxH
V = 3375 cm3