Test
STAR LIFE CYCLE
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (4)
1Protostars initially form from dust and gas clouds spiraling in together due to the force of gravity.
- AVerdadero
- BFalso
2When temperature gets high enough, hydrogen nuclei begin to undergo what to form helium nuclei and give out massive amounts of heat and light?
- Anuclear fission
- Bnuclear fusion
- Ccombustion
- Anuclear fission
3Once a star has been formed it immediately enters a long stable period where the heat created by the [blank_start]nuclear fission[blank_end] provides [blank_start]outward[blank_end] [blank_start]pressure[blank_end] to balance the force of [blank_start]gravity[blank_end] pulling everything [blank_start]inwards[blank_end]. The star maintains this energy output for millions of year due to the massive amounts of [blank_start]hydrogen[blank_end] it contains. In this stable period it is called a [blank_start]main sequence star[blank_end] and it lasts for [blank_start]billions[blank_end] of years.
- Anuclear fission
- Bmain sequence star
- Cbillions
- Dgravity
- Einwards
- Foutward
- Ghydrogen
- Hpressure
4What star emits no light?
- Awhite dwarf
- Bsupernova
- Cblack hole
Información
- Descripción
- Questions on the star life cycle
- Autor
- pickle pickles
- Idioma
- English
- Visitas
- 11
- Etiquetas
- Valoración
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