6.2 Stars & The Universe

Sun is mainly consist of _______ and ________

• Hydrogen and helium

• Carbon and Oxygen

• Hydrogen and Uranium

• Carbon and helium

What are the 3 types of radiation emitted by Sun?

• Gamma Ray, X-Ray & Ultra-violet

• Gamma Ray, Ultra-Violet & Infra-Red

• Ultra-Violet, Infra-Red & Visible Light

• Gamma Ray, Alpha & Beta radiation

• Visible Light, Infra-Red & Ultra-sound

Stars like Sun is powered by nuclear reactions in its core. What is the name of the nuclear reaction in the Sun?

(a)  

Colour and brightness of a star both depend on the (a)   of the star

Light-Year is a new unit of length to measure the enormous distances across stars. What does it mean by light-year?

What is galaxy made up of?

Our Solar System is part of a galaxy. Which galaxy do we belong to?

• Andromeda

• Milky Way

• Ursa Major

• Canis Major

A star's life cycle includes the stages of red supergiant, nebula, protostar, white dwarf, neutron star, main sequence star, red giant, black dwarf, black hole, planetary nebula and supernova.

If you could choose to be a part of the star's life cycle, which stage of the cycle you want to be? (Give a reason for fun)