Black holes test

Question 1

true or false. Stephan hawking was the first scientist to describe black holes as a completely gravitationally collapsed object.

Answer 1

false

Question 2

true or false. nuclear reactions power the sun and other stars

Answer 2

true

Question 3

true or false. the higgs boson is the particle that gives matter mass.

Answer 3

true

Question 4

true or false. the earths atmosphere blurs our vision of space and makes the stars appear to twinkle

Answer 4

true

Question 5

true or false. Galileo’s observations supported copernicus view of an earth centered universe

Answer 5

false

Question 6

true or false. to make a pendulum swing faster, add more mass

Answer 6

false

Question 7

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.

Answer 7

true

Question 8

true or false. the rainbow is the common name for the visible spectrum

Answer 8

true

Question 9

true or false. all the forms of radiation on the electromagnetic spectrum travel at the speed of light

Answer 9

true

Question 10

true or false. Einstein theorized that gravity shapes space and the flow of time

Answer 10

true

Question 11

true or false. objects appear to fall to the earth at different rates because of air resistance

Answer 11

true

Question 12

true or false. sound waves are found on the electromagnetic spectrum

Answer 12

false

Question 13

true or false. gravity can push as well as pull

Answer 13

false

Question 14

true or false. all matter has a gravitational pull regardless of size

Answer 14

true

Question 15

true or false. according to new evidence the number of black holes may be greater than the number of visible stars

Answer 15

true

Question 16

true or false. time is constant no matter where you are in the universe, no matter what you are doing

Answer 16

false

Question 17

true or false. stephen hawking died of ALS in 2006

Answer 17

false

Question 18

true or false. the area in the black hole where all the laws of math and physics break down is called quantum foam

Answer 18

true

Question 19

true or false. the singularity is the stream of radiation that escapes from a black hole

Answer 19

false

Question 20

who is considered the “father of observation astronomy”

Answer 20

Galileo

Question 21

the term for the point where all matter is crushed in a black hole is called the ___

Answer 21

singularity

Question 22

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 ____

Answer 22

the moon has no atmosphere

Question 23

the yummy term for what would happen to you if you fell into a black hole.

Answer 23

spaghettification

Question 24

heliocentric means a ___ centered universe

Answer 24

sun

Question 25

the electromagnetic spectrum includes:

a) radio waves
b) visible light
c) gamma rays
d) all listed

Answer 25

all listed

Question 26

scientist estimate the age of the earth to be ____

Answer 26

4.6 billion years old

Question 27

what determines the death phase for a star?

Answer 27

mass

Question 28

true or false. edwin hubble invented the telescope that bears his name .

Answer 28

false

Question 29

the entrance to a black hole is called the _____

Answer 29

event horizon

Question 30

the apparent change in wavelength due to the position of the observer is called the _____

Answer 30

doppler effect

Question 31

according to the theory of relativity the faster something moves the ____ the time rates associated with that frame of reference becomes.

Answer 31

slower

Question 32

the more ___ an object has, the greater its gravitational attraction

Answer 32

mass

Question 33

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)

Answer 33

hydrogen and helium

Question 34

the bending of light is called _____

Answer 34

refraction

Question 35

minus green equals ____

Answer 35

pink

Question 36

what force is slowing down the earths rotation?

Answer 36

friction

Question 37

the curvature of space and time is a central implication of _____ theory of relativity

Answer 37

albert einstein

Question 38

the theory of general relativity is the basis for _____ power

Answer 38

nuclear

Question 39

what is the differential in gravity in a black hole called?

Answer 39

tidal force