Year 12 DA Space Physics Revision

What is the life cycle of a star with the mass of our Sun?

• Protostar to main sequence to red giant to white dwarf to black dwarf

• Main sequence to red giant to supernova

• Red giant to black hole

• Protostar to supernova to neutron star

What is the shape of the orbits of the planets in our solar system?

• Circular

• Elliptical

• Square

• Triangular

What are the large lumps of rock found in the asteroid belt called?

• Comets

• Moons

• Asteroids

• Satellites

If the distance is doubled, what happens to the force?

• It is doubled

• It is quartered

• It remains the same

• It is tripled

Which type of orbit is typically used for satellites that need to monitor global weather patterns?

• Low polar orbit

• Geostationary orbit

• Medium Earth orbit

• High Earth orbit

What is the 5th planet away from the Sun?

• Mercury

• Earth

• Jupiter

• Mars

Which planet takes the shortest time to orbit the Sun?

• Earth

• Mercury

• Venus

• Mars

What is formed when the clump in the center of a nebula becomes hot enough to glow?

• A black hole

• A planet

• A protostar

• A galaxy

What process begins when the critical temperature is reached in a protostar?

• Nuclear fission

• Nuclear fusion

• Chemical reaction

• Combustion

What does nuclear fusion in a star primarily produce?

• Oxygen and nitrogen

• Helium nucleus and energy

• Carbon dioxide and water

• Iron and nickel