Life Cycle of stars

Q. Which is the nearest star to the Earth?

1. Alpha Centauri
2. Pole star
3. Sun
4. Sirius

Q. From which to which direction do the stars appear to move in the night sky?

1. East to West
2. West to East
3. South to East
4. North to West

Q. Identify the constellation in the given below image.

1. Orion
2. Cassiopeia
3. Scorpius
4. Great Bear

Q. Statement I : The earth rotates from west to east.
Statement II: Stars appear to move from east to west.

1. Both the statements are incorrect.
2. Only statement I is correct.
3. Both the statements are correct.
4. Only statement II is correct.

Q. Which of the following holds true for a black hole?

1. Light cannot escape its gravitational force.
2. Black holes exert a large amount of gravitational force.
3. It is the pre-stage of a star.
4. Black hole is formed from a supernova.

Q. In its final stages, a red giant star converts itself into a

1. supernova
2. black hole
3. neutron star
4. white dwarf

Q. What is a constellation? Name any two constellations. [3 MARKS]

Q. White dwarf is formed from a _________.

1. supernova
2. planetary nebula
3. nebula
4. neutron star

Q. Nebula mainly consists of gas and the clumps of gases condense due to force.

1. hydrogen
2. argon
3. electrostatic
4. gravitational
5. nitrogen

Q. Light can not escape the black hole because of the of black hole.

1. radiations
2. size
3. speed
4. gravity

Q. Choose the correct sequence of the life cycle of a star.

1. Red giant star - white dwarf - planetary nebula
2. Ordinary star - supernova - black hole
   
3. Red supergiant star - supernova - neutron star
4. Ordinary star - supernova - white dwarf

Q. Which of the following can be a final stage of star?

1. White dwarf
2. Neutron star
3. Stellar nebula
4. Black hole

Q. Which of the following are the primary constituents of nebulae?

1. Hydrogen
2. Nitrogen
3. Oxygen
4. Dust particles

Q. During the life cycle of a massive star, either______or______is formed from a supernova.

1. neutron star
2. white dwarf
3. black hole
4. planetary nebula

Q.

Mention the differences between planent and a star.

Q.

Why Do Stars Appear To Move From East to West?

Q.

A star begins its life in a cloud of gas and dust. The cloud is called a ___ .

1. neutron

2. galaxy

3. supernova

4. nebula

Q. Stars that are nearing the end of their life and were once Red Giants are called

1. White Dwarf
2. Red Dwarf
3. Dead Stars
4. Purple Trolls

Q. What could be the remains of a star that exploded in a supernova?

1. Neutron star
2. Nebula
3. Red super giant
4. White dwarf

Q. Which of the following happen in the intial stage of a star?

1. Increase in pressure
2. Decrease in pressure
3. Increase in temperature
4. Decrease in temperature

Q. When the Sun runs out of fuel, it expands to form a.

1. red giant
2. nebula
3. proto-star

Q.

What is there in a black hole

Q. Q:If air is called green, green is called blue, blue is called sky, sky is called yellow, yellow is called water and water is called pink, then what is the color of clear sky? 1068 B) Sky A) Blue D) Water C) Yellow

Q. Draw sketches to show the relative position of prominent stars in (a) Ursa Major and (b) Orion.

Q. Which of the following gases is present in a nebula?

1. Hydrogen
2. Nitrogen
3. Helium
4. Chlorine

Q. The reason for a star being spherical in shape is:

1. High pressure
2. Immense attraction among its particles
3. High temperature
4. Presence of hydrogen and helium

Q. A huge exploding star that ejects most of its mass, is called a

1. stellar nebula
2. black hole
3. supernova
4. white dwarf

Q. Which of the following statements are true for nebulae?

1. Energy is generated in their cores as they become dense.
2. Stars are born in them.
3. There is no gravity in them.
4. They mainly contain hydrogen and helium.

Q. A planetary nebula forms along with a

1. white dwarf
2. neutron star
3. black hole
4. galaxy