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Life Cycle of Stars

Total questions: 10

Worksheet time: 4mins

Name
Class
Date
1.

What is equivalent to 1 solar mass?

a)

The mass of the Sun

b)

The mass of the Earth

2.

The stages of the life cycle of a star mentioned in the presentation are for

a)

Stars with exactly 8 solar mass

b)

Stars with less than 8 solar masses

c)

Stars with more than 8 solar masses

3.

What is the first stage of the life cycle of a star?

a)

The first stage is the first stage

b)

Nebula

c)

Star

d)

Protostar

4.

The dense core left behind by a supernova can become

a)

A lobster

b)

A black hole

c)

A neutron star

d)

A neutron hole

5.

What does a star use to start nuclear fusion?

a)

Hydrogen

b)

Helium

c)

Electrons

d)

Neutrons

6.

What is the heaviest chemical element that can be formed in nuclear fusion?

a)

Silicon

b)

Uranium

c)

Iron

d)

Astatine

7.

What is the brightest star in Earth's night sky?

a)

The Sun

b)

Betelgeuse

c)

Yourself

d)

Sirius A

8.

What do stars use to sustain themselves?

a)

Yes

b)

Nuclear fission

c)

Nuclear fusion

d)

No

9.

Can light escape a black hole?

a)

Yes

b)

yes

c)

No

d)

no

10.

If a star eventually becomes a black hole, why does it become a black hole and not a neutron star?

a)

The star has mass less than 8 solar masses

b)

The star has mass greater than 20 solar masses

c)

The star has mass between 8 to 20 solar masses