The fact that light from other galaxies is absorbed at different frequencies indicated by the dark lines which appear closer tot he red end of the spectrum.
1 of 8
Big Bang
The theory that the universe was once small concentrated space of matter and energy and then exploded.
2 of 8
Doppler effect
The fact that when a source is moving towards you, the pitch increase but when the source moves away from you, the pitch decreases.
3 of 8
CMBR
Cosmic Microwave Background Radiation
4 of 8
Waves
A distubance that travels through matter or space, accompanied by a transfer of energy.
5 of 8
Frequency
The number of waves that pass a given point in a second.
6 of 8
Spectrum
An array of colours formed by a beam of light (ROYGBIV).
7 of 8
Galaxy
A system of billions of stars, together with gas and dust, held together by a gravitational force.
8 of 8
Other cards in this set
Card 2
Front
The theory that the universe was once small concentrated space of matter and energy and then exploded.
Back
Big Bang
Card 3
Front
The fact that when a source is moving towards you, the pitch increase but when the source moves away from you, the pitch decreases.
Back
Card 4
Front
Cosmic Microwave Background Radiation
Back
Card 5
Front
A distubance that travels through matter or space, accompanied by a transfer of energy.
Comments
No comments have yet been made