m1

Question 1

branch of astronomy that studies the origin and evolution of universe

Answer 1

cosmology

Question 2

studies non-living systems

Answer 2

physical science

Question 3

3 cosmic stages

Answer 3

bigbang nucleosynthesis
stellar formation and evolution
stellar explosion/SUPERNOVA

Question 4

formed light elements (H, HE LI)

Answer 4

bigbang nucleosynthesis

Question 5

formed elements heavier than Be to Fe (form stars)

Answer 5

stellar formation and evolution

Question 6

formed elements heavier than Fe

Answer 6

stellar explosion/ SUPERNOVA

Question 7

how many yrs since bigbang explode

Answer 7

13.8 billion yrs ago

Question 8

elements in bigbang

Answer 8

H, He, Li

Question 9

first light element

Answer 9

H and He

Question 10

explain how elements originally formed

Answer 10

bigbang

Question 11

inflation and expansion of universe

Answer 11

bigbang

Question 12

stages of bigbang

Answer 12

• singularity
• inflation
• nucleosynthesis
• recombination
• annihilation
• redshift

Question 13

a time where universe was infinity hot and dense
- created from “nothing”

Answer 13

singularity

Question 14

theory of exponential expansion of space
- inflationary lasted for 10^-36 seconds

Answer 14

INFLATION

Question 15

process of creating new atomic nuclei from pre-existing nucleons (protons and neutrons)

Answer 15

nucleosynthesis

Question 16

1 proton
1 neutron

Answer 16

deuterium

Question 17

1 proton
2 neutron

Answer 17

tritium

Question 18

1deuterium
1 neutron

Answer 18

tritium

Question 19

2 proton
2 neutron

Answer 19

helium

Question 20

1 tritium
1 proton

Answer 20

helium

Question 21

changed electrons and protons and first become bound to form electrically neutral hydrogen atoms

Answer 21

recombination

Question 22

light energy

Answer 22

photon

Question 23

negatively charge

Answer 23

electron

Question 24

positively charge

Answer 24

protons

Question 25

reaction which particle and antiparticle collide and disappear = release energy = light

Answer 25

annihilation

Question 26

antihydrogen consists of

Answer 26

positron +
antiproton -

Question 27

displacement of spectral lines (red waves) toward longer wavelengths in radiation from distant galaxies and celestial object

Answer 27

redshift

Question 28

long waves

Answer 28

red waves

Question 29

short waves

Answer 29

blue waves

Question 30

star moving away

Answer 30

red shifted

Question 31

star not moving

Answer 31

blue shifted

Question 32

smallest unit of matter
- have all properties of an element

Answer 32

atom

Question 33

composed of smaller subatomic particles such as protons, neutron, and electrons

Answer 33

atom

Question 34

atom consists of

Answer 34

electron, proton, neutron, nucleus

Question 35

calculate for mass number

Answer 35

atomic number + neutron number

Question 36

calculate for neutron number

Answer 36

mass number - atomic number

Question 37

atomic number aka

Answer 37

number of protons

Question 38

number of neutron = number of electron

Answer 38

if atom is neutral

Question 39

number of proton + neutron

Answer 39

atomic mass

Question 40

atomic number is equal but atoms mass is different

Answer 40

isotope

Question 41

reason of different atomic mass

Answer 41

of neutron

Question 42

isotopes of hydrogen

Answer 42

protium 1h
deuterium 2h
tritium 3h

Question 43

a positively or negatively charged particle

Answer 43

ion

Question 44

Ions with a positive charge are called

Answer 44

cation

Question 45

Ions with a negative charge are called

Answer 45

anion

Question 46

more proton

Answer 46

positively charged

Question 47

more electron

Answer 47

negatively charged