measurement review. what is the definition of volume? the amount of space an object takes up. what...
TRANSCRIPT
Measurement Review
What is the definition of volume?The amount of space an
object takes up.
What is the name of the instrument used to measure the volume of a liquid?
Graduated cylinder
How is the volume of a liquid measured? Units?
Use a graduated cylinder.mL or L
How is the volume of a regular solid measured? Units?
length x width x heightcm3
3cm
5cm
2cm
3 x 2 x 5 =
30cm3
Measure the volume of the liquid to the right.
67mL
Measure the volume of the liquid to the left.
21mL
Measure the volume of the liquid to the right.
Measure the volume of the liquid to the left.
2mL 49mL
1. What is the volume of this toy dinosaur?
0.8mL
(5.6mL – 4.8mL)
2. What is the name of this method?
displacement
1. What is the definition of mass? The amount of matter in an object.
2. What is the name of the instrument used to measure mass? triple beam balance
3. What are the units used to measure mass?
grams
Mass = 137.4 gm
Temperature:
When using the Celsius scale:
water freezes at
0°C
water boils =
100°C
human body temperature is
37°C
10.3cm
103mm
11.3cm
113mm11.7cm117mm
12.5cm
125mm
13.2cm
132mm
14.3cm
143mm
Determine the cm length at each letter to the nearest tenth. Determine the mm length at each letter to the nearest whole number.
0 1 2 3 4cm
8mm
What is the length of the object in millimeters? Centimeters?
.8cm
0 1 2 3 4cm
What is the length of the object in centimeters? Millimeters?
2.8cm
28mm
1. What is density?
Mass per unit volume
2. How is the density of an object measured?
Density = mass/volume
1. What is the density of one cup of water?
1g/mL
2. What is the density of half a cup of water?
1g/mL
1. What is the density of a 100gram object with a volume of 20 milliliters?
5g/ml
2. The object above was cut into three pieces. What is the density of one of those pieces?
5g/ml
Explain why an object placed in a glass of water floats.
The object has a density less than the density of water (1g/ml).
Explain why an object placed in a glass of water sinks.
The object has a density more than the density of water (1g/ml).
Below is a list of the densities of different object. Will each one float or sink in water?
1. 0.38 g/cm3
2. 1.7 g/cm3
3. 1.2 g/cm3
4. 0.99 g/cm3
5. 100 g/cm3
float
float
sink
sink
sink
Measurement Units
Length
Mass
Volume of a regular solid
Volume of a liquid
Density of a solid
Density of a liquid
mm, cm, m, km
g
cm3
mL or L
g/cm3
g/mL
Identify the meaning of each prefix.
Kilo =
Centi =
Milli =
1000
.01
.001
1 kilometer (km) = meter
1 centimeter (cm) = meter
1 kilogram (kg) = grams
1 milligram (mg) = gram
1 kiloliter (kl) = liters
1 centigram (cg) = gram
1 millimeter (mm)= meter
1000
1000
1000 0.01
0.01
0.001
0.001
CONVERSIONS
KILO (k)
HECTO
(h) DECA (da)
METER (m)
DECI (d) CENTI
(c) MILLI (m)
Complete the following conversion:
21hm = ____d
21. = 21000d0 0 0
Complete the following conversion:
12cm = ____m
12. = .12m
Complete the following conversion:
.45m = ____ km
.45000 = .00045km
Complete the following conversion:
6.3daL = ____ cm
6.3 0 0 = 6300cm