Show:
How Scientists Study Space
Big Bang
Stars
Solar Nebula Condensation Theory
Kepler's Laws
100

This wavelength has the lowest energy and the longest wavelength

Radio

100
The first event that happened after the Big Bang

Protons, neutrons, and electrons formed

100

This determines the path a star will take

its mass

100

What is the first step in the SNCT?

Nebula

100
How do planets orbit the Sun?

In an ellipse

200

This type of energy is produced through heat

Infrared

200

An object moving away from us appears red-shifted. What does an object moving towards us appear as? 

Blue-shifted
200
The final stage of our Sun. 

White Dwarf

200

What caused the gas and dust to clump together?

Gravity

200

The higher the eccentricity the more _________ the orbit.

elliptical

300

This type of wavelength allowed us to map the spiral arms of the Milky Way

Radio

300

Why can't the amount of helium in the universe be explained by stellar fusion alone?

The amounts seen in the universe are far larger than what can be produced by stellar fusion

300
How did we get all of the elements on the periodic table?

Supernova 

300

How is a planetesimal different from a protoplanet?

Planetismals are smaller than protoplanets

300

At what point in its orbit does Earth move the slowest?

aphelion (farthest from Earth)

400

This wavelength allows us to see remnants of supernovae and black holes

X-Ray

400

What is CMBR?

Residual heat seen throughout the universe

400

What is the visual difference between an absorption and emission spectrum?

Absorption: black lines against a rainbow background

Emission: colorful lines against a black background

400

What is the difference between accretion and condensation?

Condensation is a gas forming into a solid

Accretion is the gradual increase in size of the solid

400

A planet has a semi-major axis (a) of 3 AU. What is its orbital period (T) in Earth years?

    Use this formula: T^2 = a^3

T^2 = 3^3

T^2 = 27

T = 5.2 years

500
The reason why UV telescopes must be sent into space instead of placed on Earth's surface. 

The Earth's atmosphere (ozone) blocks UV radiation

500

What does Hubble's law explain about the rate of the universe's expansion?

The farther the galaxies, the faster they are moving. 

500

What does the HR diagram measure?

Luminosity and temperature of stars

500

How can meteorites be made of the same elements as Earth?

They came from the same nebula

500

A planet has an orbital period of 8 years. What is the semi-major axis (a)? 

    Use this formula: T^2 = a^3

4