Day 24 (physics)

Question 1

What is a black hole?

Answer 1

A region of space which is extremely dense, the most dense area of the universe

Question 2

What two possible outcomes could exist after a supernova explosion?

Answer 2

A black hole or a neutron star

Question 3

Which star follows a white dwarf?

Answer 3

A black dwarf

Question 4

Which star follows a planetary nebula?

Answer 4

White dwarf

Question 5

Which star follows a red giant?

Answer 5

Planetary nebula

Question 6

Which star follows a main sequence star, for stars similar size to our Sun?

Answer 6

Red giant

Question 7

What reaction allows stars to emit light?

Answer 7

Nuclear fusion

Question 8

What is a protostar?

Answer 8

A collapsed nebula

Question 9

What is a nebula?

Answer 9

A cloud of dust and gas

Question 10

What is a supernova?

Answer 10

An exploding star which can outshine a whole galaxy

Question 11

What colour is the coolest star, yellow or blue?

Answer 11

Yellow

Question 12

What colour is the hottest star, red or blue?

Answer 12

Blue

Question 13

What is the name of our galaxy?

Answer 13

The Milky Way galaxy

Question 14

What is the universe?

Answer 14

A collection of billions of galaxies

Question 15

What is a galaxy?

Answer 15

A collection of billions of stars