Black Holes

What is an accretion disk?

• a disk

• found in the black holes

• an event horizon

• a structure formed bu the diffuse material in orbit around a massive central body like a start or black hole

The minimum speed needed to a free object to escape the gravitational influence of a massive body

• escape veolocity

• accrection disk

• gravitation

• whirlpool

Tags

NGSS.HS-PS2-4

Formed when star explodes

• minature black hole

• supernovea

• fusion

• nova

Tags

NGSS.HS-ESS1-3

System where there are two astronomical bodies that are close enough that their gravitational attraction causes them to orbit around each other

• system

• earth and sun

• 2 star system

• binary system

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

The point in the center of the black hole where we believe that physics as we know if may cease to exist

• accretion disk

• singularity

• supernova

• quasar

If a dying star's core is less than 1.4 times the mass of the Sun, it becomes ___

• a white dwarf
• a neutron star
• a red giant
• a black hole

If a dying star's core is between 1.4 and 2.8 times the Sun's mass, it becomes ___

• a white dwarf
• a neutron star
• a red giant
• a black hole

Tags

NGSS.HS-ESS1-3

If a dying star's core is more than 2.8 times the Sun's mass, it becomes ___

• a white dwarf
• a neutron star
• a black giant
• a black hole

Tags

NGSS.HS-ESS1-3

For Earth, the escape velocity is about ___

• 11 km per hour
• 11 km per second
• 600 km per hour
• 600 km per second

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

A neutron star, with its immense gravity, can have an escape velocity that's up to ___

• one quarter of the speed of light
• half the speed of light
• the speed of light
• twice the speed of light

Tags

NGSS.HS-PS2-4