Stars

Question 1

Which property of a star is closely related to its temperature?

Revolt · Accepted Answer

color

Question 2

Which characteristic is used to measure the amount of light radiated by a star?

Revolt · Accepted Answer

luminosity

Question 3

What is the main element that stars are made of?

Revolt · Accepted Answer

hydrogen

Question 4

Which event signals the birth of a star?

Revolt · Accepted Answer

Extreme heat and pressure causes nuclear fusion.

Question 5

What is the initial stage of all stars?

Revolt · Accepted Answer

nebula

Question 6

Some objects in space are created from clouds of gas and dust.What will happen if the cloud does not have enough mass?

Revolt · Accepted Answer

A star will not form.

Question 7

How do spectrographs help astronomers classify stars?

Revolt · Accepted Answer

They analyze the composition of stars.

Question 8

Which event takes place first in the stages before the birth of a star?

Revolt · Accepted Answer

Gravity pulls gas and dust together.

Question 9

Which factor causes gas and dust to pull together during the first stage of star formation?

Revolt · Accepted Answer

gravity

Question 10

What happens first when a star begins to run out of fuel?

Revolt · Accepted Answer

The star’s core shrinks.

Stars Answers