catch the wave. welcome factfictionor the distance light travels in a year is about...
TRANSCRIPT
Catch the
Wave
Welcome
Fact Fictionor
The distance light travels in a year is about
6,000,000,000,000 miles.
Fact or Fiction
Light Travels 2
That is a fact
The distance from the Earth to the Sun is about
1,400,000,000 meters
Fact or Fiction
That is fiction. The distance is actually
140,000,000,000m
The mass of a dust particle is about
0.00753 kg
Fact or Fiction
Dust 2
That is fiction.
The mass is actually 0.000000000753 kg
The size of an atom is about 0.0000000001 meters
Fact or Fiction
That is a fact
What do you notice about these numbers
0.0000000001
0.000000000753
140,000,000,000
6,000,000,000,000
What is another way to express extremely large or small numbers?
1. Standard notation2. Scientific notation3. Mathematical
notation4. Expanded notation
Which of these numbers would be better written in scientific
notation?
30
0.33,000,000,000
3003,0000.03
How can we write 3,000,000,000 in scientific notation?
3,000,000,000 = 3 x 109
The distance from the Earth to the Sun is over 100,000,000,000 meters.
What is it in scientific notation?
a. 1 x 108
b. 1 x 109
c. 1 x 1010
d. 1 x 1011
The Extremes
Extreme Sort A
Journal
Fill in the first five rows
sort a anwers
1,000m 100m 10m 1m
Kilometer Hectometer Decameter Meter
What is smaller than a baseball bat
patternsOBJECT # IN METERS # IN SCI. NOTATION
Ukrop’s Race 10,000 1 x 104
60 Train Cars 1,000 1 x 103
Soccer Field 100 1 x 102
Bus 10 1 x 101
Baseball Bat 1 1 x 100
Crayon 0.1 1 x 10-1
How can we write 0.0004 in scientific notation?
0.0004 = 4 x 10-4
The size of an atom is about 0.0000000001meters
What is it in scientific notation?
a. 1 x 10-7
b. 1 x 10-8
c. 1 x 10-9
d. 1 x 10-10
Sort
SortSort the remaining cards from largest to smallest your group and record answers in your journal.
Sort Bdecimeter
centimeter
millimeter
micrometer
nanometer
0.1m
0.01m
0.001m
0.000001m
0.000000001m
When you ordered the scientific notation cards what part of the
number did you have to look at?
1. Whole number2. Ten3. exponent
What about
The diameter of Venus is about1.21999 x 107
meters
and
The diameter of the Earth is about
1.2736 x 107
meters
Which one is bigger?
a. 1.21999 x 107 (green) b. 1.2736 x 107 (red)
OR
Length of a large flea is about3.2689 x 10-3
Length of a small fire ant is about
3.2869 x 10-3
Which one is smaller?
a. 3.2689 x 10-3 (green)b. 3.2869 x 10-3 (red)
When you looked at the numbers on the last four slides what part of
the number did you have to look at?
a. Exponentb. Tenc. Decimal
What is a nanometer?
A nanometer is one billionth of a meter or 109
Why would we study numbers that are extremely small?
Light Waves
What color is light?
Refraction Light hits the prism and bends (refraction) causing the light to break apart into different wavelengths.
Wavelengths
wavelength crest
trough
crest
The Spectroscope and Diffraction
Electromagnetic Spectrum
Electromagnetic Sort
Place your cards in order from smallest number to
largest number.
Electromagnetic Spectrum
Label each section of the spectrum
Visible Light
Labels
gammaRays x-rays
light waves
radio waves
ultravioletRays
infraredRays
microwaves
Which numbers were easier to order?
A numbers in standard form
B numbers in scientific notation
Black dot