Mid Term Exam - 2016 Flashcards
What is the giant collection or cloud of space dust?
Nebula
What is the part of the atom that orbits the nucleus?
Electron
Where are most asteroids located?
Asteroid Belt
What is the distance between two peaks of waves?
Wavelengths
What is produced when visible light passes through a cloud of gas?
Absorption line spectrum
What is the process for how our solar system is formed from a cloud of gas and dust?
Accretion
What is the range of light waves that expand from the wavelength of radio waves to gamma rays?
Electromagnetic spectrum
What is the law that says there should be a planet between Mars and Jupiter?
Bode Law
What is the range of light waves that we can see - - ROYGBIV?
Visible light
What is the bending of light as it passes through and object?
Refraction
What is the change of a wave length due to the movement of an object?
Doppler Effect
What is the number of times larger an object appears through a telescope compared to the naked eye?
Magnification
What is the term for when the build up of sound waves reach a person?
sonic boom
What is the measure of the clarity of images?
Resolution
What is it when man made light reduced the visibility of the stars?
Light Pollution
What is the spectrum that is produced when a gas is heated?
Emission Line Spectrum
What is the color of the coolest stars?
Red
What is the height of waves - - how tall the waves are?
Amplitude
What is the color of the hottest stars?
Blue
What are models of light?
Photon
Wave
As a boat moves faster - what will happen to the waves in front of the boat?
They will begin to compress
Why is seeing stars in the city difficult?
Light pollution
Why do stars twinkle?
Turbulence of the atmosphere
What is the distance between the lens and the focal point called?
focal length
What can a telescopes with a long focal length increase?
magnification
What are some reasons we use a telescope?
resolve
magnify
brighten
What is the term for a telescope that has two lens - an eyepiece and objective?
Refraction telescope
What happens when things get hotter?
The wavelength shortens
The color changes
When light undergoes the doppler Effect - - the light moving toward you has what color shift?
Red
What happens to opposite charges?
They attract
What happens to like charges?
They repel
What can create a spectra?
Prism
CD’s
Raindrops
What is one of the reasons that the Hubble space telescope better than the ones on earth?
The light does not pass through the atmosphere
What are the only two parts of the electromagnetic spectrum that makes it to the earth’s surface?
visible light and radio waves
When a boat moves faster than the waves - - What is produced?
Waves that overlap ad form a “V” shape
What is the term for when high mass stars die violently by blowing themselves apart in these explosions?
Supernova
What is the term for a series of different types of fusion reactions in high mass stars?
Luminous supergiants
What is the term for a relatively gentle explosion of hydrogen gas on the surface of a white dwarf?
Nova
What is the term for the burned out core of a low mass star becomes?
White dwarf
What is the term for when low mass stars explode into these before expanding into a planetary nebula?
Red Supergiants
What is the term for the giant collection or cloud of space dust?
Nebula
What is the term for when massive stars explode their remnants cores become highly compressed clumps of neutrons?
Neutron Star
What is the term for a spinning neutron star?
Pulsar
What is the term for what may have formed the early universe?
Primordial Black Hole
What is the term for the shell or edge of a black hole where light can no longer escape?
Event Horizon
How is the mass of an object moving at the speed of light affected?
It becomes infinitely massive
How does moving at the speed of light affect time?
Slows it down
What did radio waves emitted by pulsars lead scientists to believe at one time?
The radio signals were from aliens
The remnants (remains) of a supernova explosion will last how long?
Millions of years
The balance between the force of gravity pushing in on a star and the force of fusion pushing out on a star keeps the star stable - - what is this called?
Hydrostatic equilibrium
How does mass affect space time?
It warps pace time resulting in the bending of light
The properties of a black hole are all of the following?
Mass
Angular momentum
Electrical charge
We assume that there is a black hole in the center of our universe for all of the following reasons?
The speed of gases moving near the center
We can see the black hole in our galaxy
