Astronomy Unit 2.2 - Death of stars

A star will stop being a main sequence star when all the _______________ in its core is used up as fuel

• hydrogen

• helium

• carbon

• uranium

When all the fuel in a small/medium star's core is used up, fusion outside the core will cause it to expand and become a ___________________ star.

• Red Giant

• White Dwarf

• Purple Meany

• Black Hole

When a Red Super Giant star runs out of fuel, it will collapse so hard that an explosion known as a _________________ will occur.

• Pyrotechnic Display

• Aurora

• Supernova

• Quasar

Main sequence stars of all masses are fusing what element to make helium?

• hydrogen

• iron

• gold

• beryllium

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-1

What happens to the extra 0.029 of matter that is left over when hydrogen is fused into helium?

• Nothing, it just stays in the star

• Released as energy

• There is no leftover matter

• Stars are dumb

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-1

As the binding energy of a nucleus increases, the energy required to separate the nucleus into nucleons _____.

• decreases

• increases

• stays the same

• becomes negative to positive

Tags

NGSS.HS-PS1-8

Which of the following statements is/are correct regarding the binding energy of the nucleus. (pick all that apply)

I. It is equivalent to the mass defect

II. It is the energy that holds the nucleus together

III. It is the energy required to remove a proton from the nucleus

• I

• II

• III

• None of the options

Tags

NGSS.HS-PS1-8

When nucleons form a stable nucleus, binding

energy is _______.

• created from nothing

• destroyed into nothing

• absorbed as high energy photons or

  particles

• released as high energy photons or particles

Tags

NGSS.HS-PS1-8

Elements to the right of Iron will undergo

• Fusion to become more stable

• Fission to become more stable

Tags

NGSS.HS-PS1-8

Elements to the left of Iron will undergo

• Fusion to become more stable

• Fission to become more stable

Tags

NGSS.HS-PS1-8