Unit Conversion
what is unit conversion?
Unit conversion is a multi-step process that involves multiplication or division by a numerical factor
how do you write a scientific notation?
In scientific notation, a number is converted to the product of a number between 1 and 10 and a power of 10
what is the Big Bang?
The Big Bang is a scientific theory about how the universe started
what is the solar system?
the sun together with the group of celestial bodies that are held by its attraction and revolve around it
What is the difference between wavelength and frequency?
Wavelength has to do with the size of the wave while frequency has to do with how often he wave comes
How many centimeters are in a meter?
100cm
what is 1,000,000 as a scientific notation
1.0 • 106
What is the end result of a contracting Universe?
a point or singularity
how many planets are in the solar system?
8 planets
what is the electromagnetic spectrum?
electromagnetic spectrum is something that describes all kinds of light humans cannot see
how many meters are in a kilometer
1000m
how do you convert a scientific notation to a standard form?
look at the exponent on the base. If it is positive, move the decimal point on the coefficient to the right as many times as the exponent indicates
According to the Big Bang theory, when did the universe begin?
the Universe began about 13.7 billion years ago.
what is a planet?
a celestial body moving in an elliptical orbit around a star.
What is spectroscopy?
The study of spectra produced when materials emits light
how many centimeters are in 300 meters
100 x 300= 30,000cm
convert 1.0 • 109 to a standard form
10,000,000,000
what were the first elements in the universe?
Hydrogen and Helium
what is the largest planet in the solar system?
Jupiter
What are absorption lines?
Lights that get absorbed as they were leaving the sun
how many meters are in 0.929 kilometers
1000 x 0.929= 929m
convert 1.0 • 10-10 to a standard form
0.00000000010
how did things like stars, and galaxies form?
clumps of matter that were held together by gravity helped form stars and galaxies
what is the smallest planet in the solar system?
Mercury
What are emission lines?
When atoms get excited and emit the same colors that they can absorb