What happens to time at the event horizon?

• It slows to half

• it stops

• it speeds up then slows down

• it reverses

Label the parts of the lighthouse model.

c

d

e

f

b

a

neutron star

hot spots

magnetic fields

rotation axis

beam of radiation

magnetic axis

Tags

NGSS.HS-PS4-5

Which of the following is not produced when Carbon fuses to heavier elements?

• neon

• magnesium

• helium

• sodium

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which of the following occurs when iron is fused in the core of a large mass star?

• neutrinos are formed

• electrons are absorbed

• neutron stars are formed

• energy is given off

Tags

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

Which of the following is a Type II supernova?

• explosion occurs only to stars in a narrow mass range — 0.5 - 0.75 solar masses

• results from the rapid collapse and violent explosion of a massive star

• binary systems in which one of the stars is a white dwarf

• Red giant in binary system with another red giant

Tags

NGSS.HS-ESS1-3

A famous supernova remnant

• crab

• dumbbell

• ring

• hourglass

Tags

NGSS.HS-ESS1-3

What is the highest element fused in the large mass star?

• hydrogen

• Iron

• oxygen

• silicon

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Which of the following does NOT occur during Stage 10 for large mass stars?

• supernova explosion

• fusion stops at iron

• star oscillates back and forth on HR diagram

• no helium flash

Tags

NGSS.HS-ESS1-3

Neutronium is

• a made up term in science fiction

• the material in a black hole

• the material in a neutron star

• the material in a white dwarf

Tags

NGSS.HS-ESS1-3

Which of the following is NOT a property of a neutron star?

• 1 - 3 solar masses in core

• 1 solar mass is 10km in diameter

• size of Manhattan

• collapse of the core of a sun sized star