Term
| What do you call a cloud of dust and gas in space? |
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Definition
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Term
| What do you call a nebula that has staryted to glow? |
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Definition
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Term
| What is the name for athe adult from of a star? |
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Definition
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Term
| How does a main sequence star produce energy? |
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Definition
| Through thermonuclear fusion of hydrogen. (Fusing four hydrogen nuclei together to form a helium nucleus) |
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Term
| What is thermonuclear fusion of hydrogen? |
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Definition
| When two hydrogen nuclei are fused together with heat to create one helium nucleus. |
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Term
| What type of star is our sun? |
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Definition
| A yellow main sequence star. |
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Term
| Approximately how long will a main sequence star like our sun "burn" hydrogen before it runs out of fuel? |
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Definition
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Term
| Which color stars are the hottest? |
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Definition
| blue/white/purple -ish stars |
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Term
| Which color of stars are the coolest? |
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Definition
| red/orange/yellow -ish stars |
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Term
| What is the estimated surface temperature of a blue/white stars? |
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Definition
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Term
| What is the estimated surface temperature of a red star? |
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Definition
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Term
| Which type of star would be brighter; a yellow one or a red one? |
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Definition
| Yellow; it is closer to the white end of the spectrum than red. (In order from coolest to hotest: Black, Red, Orange, Yellow, Green, Blue, Indigo, Violet, White) |
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Term
| What is the relationship between a star's mass and its surface temperature? |
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Definition
| The greater the temperature, the greater the mass. |
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Term
| Which type of star gets its energy through thermonuclear fusion of Helium? |
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Definition
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Term
| What will happen to our solar system when our sun turns into a red giant? |
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Definition
| It will get pushed out of the way and crushed by the growing sun. |
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Term
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Definition
| A star five times as big as our sun after is goes through the supernova stage. |
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Term
| How much would one teaspoon of white dwarf material weigh? |
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Definition
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Term
| Approximately how big is a white dwarf? |
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Definition
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Term
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Definition
| A star five times bigger than our sun after it has gone through its supernova and white dwarf phases. |
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Term
| Why is a black dwarf black? |
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Definition
| Because it doesn't emit light. |
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Term
| What are the stages that a star like our sun will go through in its life? |
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Definition
| Nebula, Protostar, Main Sequence Star, Red Giant, White Dwarf, Black Dwarf. |
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Term
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Definition
| The explosion of a star due to the collapse of gravity. |
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Term
| What types of stars will experience a supernova? |
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Definition
| Stars larger than our sun. |
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Term
| Will our sun ever experience a supernova? |
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Definition
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Term
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Definition
| A star that appears to flash. |
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Term
| How much would a teaspoonfull of neutron star material weigh? |
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Definition
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Term
| What types of stars might end up as a neutron star? |
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Definition
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Term
| What does a neutron star look like? |
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Definition
| It appears to flash. This is because it is spinning, and the light escapes only at the poles, and so we see the ples in rapid succession, so it looks like it's flashing. |
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Term
| How big is a neutron star? |
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Definition
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Term
| Will our sun ever become a neutron star? |
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Definition
| No. There's no supernova with our sun, so it can't become a neutron star. |
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Term
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Definition
| A star that sucks things in at the speed of light, then they can't escape, since they can't go faster than the speed of light at which they're being sucked in. |
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Term
| What stars might end up as a black hole? |
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Definition
| Stars five times larger (or more) than the sun. |
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Term
| Why is a black hole black? |
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Definition
| The light cannot escape anywhere. |
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Term
| Why won't our sun ever end up as a black hole? |
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Definition
| Our sun will never have a supernova, so it cannot go in the direction of a black hole. |
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Term
| Which type of star has the strongest gravity? |
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Definition
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Term
| What star has the second most gravity? |
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Definition
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Term
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Definition
| A star that appears to flash. Also called a neutron star. |
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Term
| Why does a pulsar appear to flash on and off? |
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Definition
| The light can only escape at the poles, and it is rotating, so you see the light every time one of the poles is angled in your direction. |
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Term
| Does a pulsar ACTUALLY flash on and off? |
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Definition
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Term
| Why did Fritz Zwicky and Walter Baade do? |
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Definition
| They proposed (and never proved) the idea that neutron stars could exist. |
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Term
| What did Jocelyn Bell do? |
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Definition
| Proved Fritz and Walter's theory true. |
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Term
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Definition
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Term
| What does "Quazar" stand for? |
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Definition
| Quazi-Stellar radio source. |
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Term
| What is a radio telescope, and what does it do? |
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Definition
| A telescope that picks up sounds from space, and it does it by ********* |
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Term
How are a Nova and a Supernova the same?
Different? |
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Definition
They are both explosive.
Nova doesn't destroy a star, Supernova does.
ex) Nova=throwing paper on a fire makes it bright, then it dimms down.
Supernova= pouring gasoline on a fire: it makes it explode(-ish) and then go out. |
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Term
| List the stages of a 2X sun. |
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Definition
| Nebula, Protostar, Main Sequence Star, Red Giant, Supernova, Neutron Star/Pulsar |
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Term
| List the stages of a 5X sun. |
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Definition
| Nebula, Protostar, Main-sequence star, Red giant, Supernova, Black hole |
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