astronomy final exam practice 3

which star listed below would have the shortest total lifetime on the main sequence

a 37.5 MO star

what is the symbol for a neutrino

why do neutrino conduct some of their neutrino experiments at night

the earth is used as a filter against any other particles

which main sequence star, of the ones listed would be the most common in the universe

a 2.1 MO star

according to calculations approximatley how often does a neutrino strike a quark in a humans body

once per lifetime

which type of spectral type main sequence star would have a total lifetime of slightly longer more time than the sun total lifetime according to present calculations

an G3 star

what is the nuclear reaction called when a larger nucleus splits into a smaller nuclei, producing gamma rays in the process

fission

iron fusion creates

all heavier elements

what keeps gravity for collapsing a main sequence star

gas pressure and electron pressure

sometimes a planet moves in front of its star and blocks a little bit of the stars light when this happens its called a

transit

which of the following is correct about planetary nebulae

they are death of a giant and they have white dwarf at the center

assume there is an extrasolar planet discovered orbiting around G1 spectral type main sequence star. what would be a good estimate of this planets distances from its star habitual zone

1.2 au

what subatomic particles make up protons and neutrons

electrons

the name of a neutrino detection facility in antartica that we discussed in class is

icecube

the most famous planetary nebula is probably the

andromeda

the push of EMR (light) is called___ pressure

radiation

the kepler planet finder mission discovered many extrasolar planets by using the method of

planetray transit across their stars

according to calculations the sun has __ years of hydrogen fuel in its core left

5-7 billion

if and when the sun becomes a giant star, what would be a good estimate for its spectral type when it is a giant

K0

the greeks thought the sun was a

hot rock

iron fusion produces a large amount of energy

false

the owl nebula deumbell nebula and ring nebula are all examples of

planetary nebulae

the dogon tribe in africa was very concerned with the star

sirius

the most accurate way determining the evolution of stars from one region to another on the H-R diagram is

computer modeling

what name did i give to my coed softball team which also turned out to be a bad idea

neutrinos

which main sequence of stars listed by mass should eventually become a giant

a ).9 MO star, a 6.5 MO star

which main sequence stars listed by mass should eventually become a supergiant

a 10.9MO star, an 11.8 MO star, a 14.2 MO star, and 20.7 MO star

gas and dust orbiting a protostar is called a

protoplanetary disk

the goldilocks zone is another name for the

protostar disk