Life and Death of a Star

Where are the stars formed?

• Supernova

• Nebula

• Sun spots

• Aurora

J: Hydrogen gas turns into helium.

K: Clouds of dust and gases form nebula.

L: The gas and dust particles are pulled by gravitational force.

M: The globe of gas shrinks and forms a core.

N: Heat and light energy are released.

Which of the following is the correct sequence for the birth of star?

• J - M - K - L - N

• K - L - M - J - N

• L - N - M - K - J

• M - J - L - K - N

The diagram shows a cloud of hydrogen gas and dust in the outer space. How can the cloud of gases form a new star?

• Strong gravitational force causes the gases to pull together to form a ball of gases.

• High pressure of the outer space compresses the cloud of gases to form a star.

• High temperature at the centre of the cloud of gases causes a strong gravitational force is formed.

• The chemical reaction causes the cloud of gases to form a star.

Which of the following correctly describes a black hole?

• Supernova explosion forms black hole.

• A dead neutron star forms black hole.

• Black hole is a type of star.

• Black hole allows light to escape.

What are the gases present in the core of a star?

(Choose two.)

• Helium

• Oxygen

• Krypton

• Hydrogen

Tags

NGSS.HS-ESS1-1

Which of the following about the black hole is true?

• Black hole is visible because it emits light.

• Black hole has a very low gravitational force.

• Black hole is formed from the explosion of a very massive star.

• Black hole has a very low pushing force.

The diagram shows the death of a star. What are J, K and L?

• J: Supergiant ; K: Neutron star ; L: Black hole

• J: Supergiant ; K: Neutron star ; L: White dwarf

• J: Neutron star ; K: Supergiant ; L: White dwarf

• J: Neutron star ; K: Black hole ; L: Supergiant

Tags

NGSS.HS-ESS1-3

The diagram illustrates the death of a large star to become a neutron star. What happens at Q?

• Dying stars expands

• Red giant star explodes

• Red giant star collapses

• The remaining mass of the large star contracts

Tags

NGSS.HS-ESS1-3

which of the following represents the life cycle of a super large star correctly?

• J - K - L - M - N

• M - L - J - N - K

• N - L - J - M - K

• K - N - J - L - M

Tags

NGSS.HS-ESS1-3

Death of stars involved the red giant contracts so quickly that a big explosion called a ___________ occurs.

• galaxy

• planet

• nebula

• supernova

Tags

NGSS.HS-ESS1-3