Stars
How much bigger than the sun must a star be to become a black hole?
more than 5 times
Name the force that causes planets to orbit the sun
gravity
What is at the centre of the solar system?
The Sun
In which part of the life cycle will stars spend most of their time?
Main Sequence
Explain why gravity is a non-contact force.
objects do not need to touch for the force to be felt.
Name the galaxy that our solar system is part of.
Milky Way
Describe what happens to a white dwarf over time.
Emits energy to cool down and become a black dwarf
Name the force that balances gravity in main sequence stars
Fusion Pressure
Name the biggest planet in the solar system.
Jupiter
Name the stage in the life cycle of a star that produces elements heavier than iron.
Supernova
Gravity
The original model of the solar system had the earth at the centre. Why was a new model suggested?
What is the difference between a red giant and a red supergiant?
Red supergiants are bigger and will fuse elements up to iron. Red giants will only fuse elements up to oxygen.
Fusion pressure is less than gravity, so the star collapses in on itself, releasing its GPE as heat in the form of supernova.
Mercury, venus, earth, mars, jupiter, saturn, uranus and neptune