Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Matter & Astronomy
| Question | Answer |
|---|---|
| Atom | Smallest unit of matter |
| Atoms | The building blocks of all matter |
| The Big Bang Theory | The universe expanded from an extremely dense and hot explosion and continues to expand today |
| Black Dwarf | A dead star that is no longer hot nor bright |
| Blue Main Sequence Star | short lives because they use a lot of fuel |
| cosmic background radiation | is the leftover thermal energy from the big bang. This energy was distributed as the universe expanded |
| density | The measure of how tightly particles are packed together in a given substance. It is calculated by dividing mass by volume |
| Element | The smallest form of matter that cannot be broken down into different substances |
| The first stage of a star's life | Protostar |
| A high-mass star can continue to fuse elements in its core up to which element? | iron |
| In white dwarf, the mass of the Sun is packed into the volume of what? | The planet size of Earth |
| Is Matter..... | Molecules, Acid Rain, Gasses |
| It becomes this when it is ignited | Main Sequence Star |
| Main Sequence Star | A star during the main part of its life cycle where it is using hydrogen as fuel |
| Mass | How much matter is in an object |
| Matter | Anything that has mass and takes up space |
| Matter is NOT | Gravity, Lighting, Fear |
| Most large mass stars turn into...... | Black Hole |
| Nebula | The concentration of dust clouds and gas in space that forms a star |
| Neutron Star | Created when the giant stars die in Supernovas and their core collapse |
| Neutron Star | The core of a red supergiant that has collapsed but can be seen |
| Nuclear Fusion | When nuclei of hydrogen atoms join to form helium and they release energy in the process |
| Nuclear Fusion | When two nuclei combine to form a heavier element |
| Our Solar System is.... | 4.6 billion years old |
| Our Sun is a | Yellow star |
| Planetary Nebula | A cloud of gas that forms around a sun-like star that is dying |
| Planetary Nebula | the stage of a dying red giant star where all its gases have drifted away due to its weak gravity |
| Protostar | The condensing and heating of hydrogen atoms and dust before the star is born. There is no nuclear fusion yet |
| Red Giant | Outer parts expand, then the core shrinks. Turns red as it is cooling |
| Red Giant | The star that has expanded and cooled, resulting in it becoming red. It has used up all the hydrogen in its core and is now using helium ass fuel |
| Red supergiant | A star that has used up all the hydrogen, is using helium as fuel, creates heavy elements in its core ( up to iron) and has a mass much higher than the Sun |
| Solar Nebula Theory | The Solar System developed out of an interstellar cloud of dust and gas |
| Stars begin as parts of a .... | Nebula |
| Stars created... | The first elements |
| Stars like our Sun will end their lives as what? | Whit Dwarfs |
| Supernova | As the core shrinks, pressure increases; results in explosin |
| Supernova | An explosion produced when the core of a red supergiant collapses |
| T/F: Stars more massive than the Sun follow the same paths when leaving the main sequence. | False |
| Weight | How much gravity is pulling on an object |
| What does a neutron star mostly consist of? | Neutrons |
| When do high-mass stars leave the main sequence? | When there is no more hydrogen fuel in their core |
| Where were Hydrogen and helium formed? | The Big Bang |
| White Dwarf | Small blue white hot core; Faint glow from left over energy |
| White Dwarf | A start that has collapsed from the red giant stage to become much hotter and denser than it was. |
Created by:
PhysicalScienceDTHS
Popular Physical Science sets