Physics Black Hole Apocalypse Movie

how many light years did the signal travel to reach us

1 billion

the waves from two merging black holes resemble

vibrations from a drum

how much power did the collision put out

50X the power as the universe

how fast do waves of gravity travel

speed of light

for 400 yearsm nearly all observations of the universe were in what form

electromagnetic energy

gravitational waves squeeze and stretch

the very fabric of space

T/F: the black hole collision emitted some light, but was too dim to be seen from Earth

True

a blackhole can

• pull things in

• warp light

• change time

what are blackholes according to Levin

hole in the fabric of space, nothing but extreme gravity

for a long time, what was one of the greatest mysteries according to Levin

how gravity actually works

T/F: Isaac Newton’s laws of motion work have become outdated

false

What did Einstein realize about gravity

it had something to do w falling

what was Einstein’s “extremely simple” concept about the mass of objects

it curves space

according to Einstein’s 1915 theory of general relativity, gravity

follows the curves of the Earth in space

What was Karl Swartzchild the first to do

solve Einstein’s equations

Per Swartzchild, what appeared when a star’s mass was concentrated into a single point

a boundary where particles disappeared and time stopped

black hole

created by any mass compressed into a tiny enough space

which process uses atoms to power stars

nuclear fission

how are stars distributed

size and mass

stars are like living creatures, and the life of the star depends upon

life cycles

which element do all stars start out fusing

hydrogen + helium

what balances inward crush of gravity to keep the star from collapsing

energy

which element is a “dead end” for massive stars

iron

the collapse of a massive star creates what type of explosion

a supernova

the unstoppable collapse of the remaining core of a massive star results in

a black hole

stars greater than or equal to ____ times the sun’s mass will collapse into a black hole

10X

T/F At a black hole’s event horizon, nothing can escape, not even light

true

gravitational lensing

the bending of light due to a black hole’s extreme gravity

what happens to time inside a spaceship near a black hole

time slows down for people on earth, speeds up for people in space

an astronaut passing into a black hole will become

frozen in time

how can black holes be investigated

by observing what happens around the black hole

electromagnetic reduction

a type of radiation emitted by objects at temperatures of millions to tens of millions of degrees

Binaries

pairs of orbiting stars locked together by gravity

cygnas x-1

red and blue color change of moving stars

Why did Sir Richard Wooley think black holes were fanciful

he thought those people in California were weird who came up with the idea

what is absolutely fundamental in astronomy

distance

particles closest to the black hole whip around at

half the speed of light

why does cygnus x-1 emit X-rays

they collide and heat up

what’s cygnus x-1 doing to its companion star

enormous jets

how many blackholes have been found in our galaxy

20