Stars Flashcards
1
Q
Where do cooler stars emit their energy?
A
In Infra- Red part of electromagnetic spectrum.
Appear RED to us.
2
Q
What colour are very hot stars?
A
Blue - emit energy in ultra violet part of spectrum.
3
Q
Warmer the object, ___?
A
Shorter the wavelengths.
4
Q
What powers a star?
A
Nuclear fusion reactions ta,ing place in its core = produce new atoms.
