Unit 1: Measurement
Matter
Everything is made of _________
Matter is described as anything that has
volume and mass.
______________ is the amount of space
an object takes up.
___________ is the amount of matter in
an object.
Mass
The unit for mass is the
______________ (kg).
Mass is different from weight.
Your weight factors in the
effect of gravity.
How do we measure Volume?
* Volume = amount of space an
object takes up
1.Direct measurement (using
a metric ruler)
2.Water displacement
1.Direct Measurement
For a Solid _____________
Object (rectangular prism):
Volume =
____________________________
Volume Unit = _________
** 1ml = 1cm^3
Volume Example
Volume =
LxWxH
Volume =
7 x 4 x 2 = 56cm
Problems
1.
Problems
2.
Problems
3.
2. Liquid Volume & Water
Displacement Method
Liquid Volume
- Use a _____________________ cylinder
- Remember: 1mL = 1cm^3
Water Displacement Method
- Used for objects with an ___________
shape
- Anything other than a square or
rectangle
TedED Video
1. Why couldn’t Archimedes find the
volume of the crown by measuring
it with a ruler?
________________________________
________________________________
________________________________
Water Displacement
- Essentially, however
much water is
__________________
(pushed out of the way)
by the object=
______________ of the
object.
Example:
Before Rock
= ________ mL
After Rock
= ________ mL
Rock Volume = ____
Example:
Before Rock
= _______ mL
After Rock
= _______ mL
Rock Volume = ____
1. With Object: ________ mL
2. With Object:________ mL
W/out Object: ________ mL
W/out Object: ________ mL
Volume: ________ mL
Volume: ________ mL
The Metric System
Metric Conversion Chart
Metric Scale
Basic Units Include:
Meters
Liters
Grams
Watts
Newtons
Kilo
Hecto
Deca
Base
Deci
Centi
Milli
1000
100
10
Base
0.1
0.01
0.00
Kilo
Hecto
Deca
Base
Deci
Centi
Milli
K____________
H____________
D____________
B____________
D____________
C____________
M____________
K H Da B D C M
Let’s look at a metric ruler.
1. How many meters are in a meter? _______
2. How many decimeters are in a meter? ____
3. How many centimeters are in a meter?____
4. How many millimeters are in a
meter?_____
K H Da B D C M
Let’s look at a metric ruler in the other direction.
5. How many meters are needed to make a
decameter? ___________
6. How many meters are needed to make a
hectometer? __________
7. How many meters are needed to make a
kilometer? ___________
Check 4 Understanding
For the following units, state if they are
smaller or larger than a meter.
a. centi _____________________
b. hecto _____________________
c. deca _____________________
d. deci _____________________
K H Da B D C M
47424.6 mL = __________ Hl
-Put your finger on the units that you are given
(which are mL) on the scale above.
-Move your finger left to hL, and count the number
of places you have moved.
-Move the decimal the name number of places in
the same direction.
K H Da B D C M
6.7234 kL = ____________ L (base unit)
-Put your finger on the units that you are given
(which are kL) on the scale above.
-Move your finger right to B, and count the number
of places you have moved. (Three to the right).
-Move the decimal the name number of places in
the same direction.
Why does an
object float
on water?
Density
- Density = ratio of the mass to volume of
a substance at a given temperature
** Basically, how _______________
________________the molecules are
within that substance.
Density Unit = _______________for both
liquids and solids
Which is more dense?
Formula for Density
Density = __________
Part I: Find the Unknown Quantity
A.D= ?
V= 100mL
M= 50ML
Part I: Find the Unknown Quantity
B. D= ?
V= 950mL
M= 95g
Part I: Find the Unknown Quantity
C) D= ?
V= 40cm^3
M= 20 g
Part I: Find the Unknown Quantity
D) D= ?
V= 90cm^3
M= 30g
Part II: Conversion
REMEMBER:
Mass is always in __________.
Volume is always in ________or ___________.
D is always in g/mL or g/cm^3
** You may need to convert back to g or mL.
Part II: Converting Before Solving
A.D= ?
B.V= 1.2L
(Convert L to mL 1st)
M= 28,800g
B. D= ?
V= 100mL
M= 1.5kg
(Convert kg to g 1st)
D=M/V
D=
D= M/V
D=
Part II: Converting Before Solving
C. D= ?
V= 0.52 L
M= 500 mg
What do we need to do 1st?
Temperature
Temperature: Measure of
the _______________ kinetic
energy of the particles in a
sample of matter (different
from heat)
______________ Energy:
Energy of motion
Three Units of Temperature
1._______________ (℉)
2._______________ (℃)
- Based on ____________________
3. _______________ (K)
Kelvin (K)
- Considered international scientific scale
for temperature
- Notice → no degree symbol
- Freezing point of water: _______K
- Boiling point of water: ________K
Absolute Zero
Absolute Zero _______
(-459.67℉)
- Hypothetical
temperature atoms
reach minimum
________________
Fill in the table.
** 9/5 = 1.8
** 5/9= .556
Conversion Formulas
C to F
℉ = (9/5 x C) + 32
F to C
℃ = 5/9 x (F -32)
C to K
K = ℃ + 273
K to C
℃ = K -273
Fill in the table using the formulas.
Temperature Scales
Fahrenheit ℉ Celsius ℃
Water Boils
Body Temperature
212
37
Room Temperature
Water Freezes
Kelvin K
293
0
Practice
1. “The weather forecaster predicts that
today’s high will be 70° .”
-Which scale is being used? _____________
-On the Celsius scale? __________________
-On the Kelvin scale? __________________
Practice
2. “It was so cold yesterday that the
temperature only reached 275!”
-Which scale is being used? ___________
-On the Celsius scale? ________________
-On the Fahrenheit scale? _______________
Practice
3. “Today’s temperature of 42° in
Chicago set a record high for the month
of August.”
-Which scale is being used? ___________
-On the Kelvin scale? ________________
-On the Fahrenheit scale? _____________