Astronomy 2.3 Review

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

• Gamma Rays
• Radio Waves
• Visible Light
• Infrared rays

Tags

NGSS.HS-PS4-1

The frequency of infrared waves is..

• 10¹² Hz
• 10²⁰ Hz
• 10⁴ Hz
• 10¹⁵ Hz

Tags

NGSS.HS-PS4-1

What gases are in the unknown mixture?

• Gas B & Gas D
• Gas C & Gas B
• Gas A & Gas D
• Gas D & Gas C

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The picture shows a picture of what telescope? 

• Reflecting
• Refracting

Why is the Hubble telescope located in space?

• So it can be closer to the stars it magnifies
• They have very large optical lenses
• So its images arent distorted by Earth's atmosphere 
• So it can be operated by astronauts 

The hottest stars appear as what color? 

• red
• yellow
• blue
• white

Scientists can determine the temperature of a star by looking at its ________. 

• size
• mass
• energy 
• color

A lab sample of gas is shown at the top. Which of these would be present in the sample?

• Beryllium
• Manganese
• Strontium
• Titanium

A technique that uses the images from several telescopes to produce a single image.

• interferometry
• combinometry
• supertelescoping
• megascoping

An ideal body or surface that completely absorbs all radiant energy falling upon it with no reflection and that radiates at all frequencies with a spectral energy distribution dependent on its absolute temperature

• Blackbody

• Microwave

• Stefan-Boltzmann Law

• Wien's Law