Chapter 11 Stars and Galaxies in the Universe

Which colour shows the coolest star?

• Blue

• White

• Yellow

• Red

The statements below are the steps in the birth of a star. Choose the correct arrangement.

• U, W, V, S.T

• U, W, S, V. T

• T, V, S, W, U

• V, U, T, S, W

Diagram shows the birth and death of a star. Which of the following are represented by P, Q and S?

• 
• 
• 
• 

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

• Helium

• Oxygen

• Krypton

• Hydrogen

Which characteristics are used to classify stars?

• Size

• Distance

• Mass

• Density

Match the following galaxy to their shape.

• Elliptical

• Spiral

• Irregular

Match the following galaxy to their shape.

• Elliptical

• Spiral

• Irregular

The solar system is located in the Andromeda galaxy.

• TRUE

• FALSE

The solar system is located in a spiral galaxy.

• TRUE

• FALSE

The formation of a star occurs when gases and dusts in the nebula are pulled by a gravitational force. Choose the two early stages in the birth of a star.

• Core

• Massive star

• Protostar

• Neutron star