Black holes test Flashcards
true or false. Stephan hawking was the first scientist to describe black holes as a completely gravitationally collapsed object.
false
true or false. nuclear reactions power the sun and other stars
true
true or false. the higgs boson is the particle that gives matter mass.
true
true or false. the earths atmosphere blurs our vision of space and makes the stars appear to twinkle
true
true or false. Galileo’s observations supported copernicus view of an earth centered universe
false
true or false. to make a pendulum swing faster, add more mass
false
true or false. the big bang theory grew out of Edwin hubbles discovery in the 1920s that states that galaxies are flying away from one another.
true
true or false. the rainbow is the common name for the visible spectrum
true
true or false. all the forms of radiation on the electromagnetic spectrum travel at the speed of light
true
true or false. Einstein theorized that gravity shapes space and the flow of time
true
true or false. objects appear to fall to the earth at different rates because of air resistance
true
true or false. sound waves are found on the electromagnetic spectrum
false
true or false. gravity can push as well as pull
false
true or false. all matter has a gravitational pull regardless of size
true
true or false. according to new evidence the number of black holes may be greater than the number of visible stars
true
true or false. time is constant no matter where you are in the universe, no matter what you are doing
false
true or false. stephen hawking died of ALS in 2006
false
true or false. the area in the black hole where all the laws of math and physics break down is called quantum foam
true
true or false. the singularity is the stream of radiation that escapes from a black hole
false
who is considered the “father of observation astronomy”
Galileo
the term for the point where all matter is crushed in a black hole is called the ___
singularity
on the moon, a feather and a hammer hit the surface of the moon at the exact same moment when dropped at the same time from the same height. this is true because ____
the moon has no atmosphere
the yummy term for what would happen to you if you fell into a black hole.
spaghettification
heliocentric means a ___ centered universe
sun
the electromagnetic spectrum includes:
a) radio waves
b) visible light
c) gamma rays
d) all listed
all listed
scientist estimate the age of the earth to be ____
4.6 billion years old
what determines the death phase for a star?
mass
true or false. edwin hubble invented the telescope that bears his name .
false
the entrance to a black hole is called the _____
event horizon
the apparent change in wavelength due to the position of the observer is called the _____
doppler effect
according to the theory of relativity the faster something moves the ____ the time rates associated with that frame of reference becomes.
slower
the more ___ an object has, the greater its gravitational attraction
mass
based on the light emitted from the sun we know that it is 94% ____ and almost 6% _____ (the two most common elements in the universe)
hydrogen and helium
the bending of light is called _____
refraction
minus green equals ____
pink
what force is slowing down the earths rotation?
friction
the curvature of space and time is a central implication of _____ theory of relativity
albert einstein
the theory of general relativity is the basis for _____ power
nuclear
what is the differential in gravity in a black hole called?
tidal force
