ESS
Grade-9
Easy
Question
Red shift is________.
- Collapsing of a star
- Galaxies and stars are shifting away from us.
- A very shining explosion of radiation
- Collapsing of sun
Hint:
The further away a galaxy is, the more red-shifted its light is.
The correct answer is: Galaxies and stars are shifting away from us.
- This means that the further away the galaxies are, the faster they are moving.
- This is similar to an explosion, where the bits moving fastest travel furthest from the explosion.
- Red-shift data provides evidence that the Universe, including space itself, is expanding.
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