AST Unit 1 Big Bang Vocab

Front

Distribution of radiation by energy or wavelength

Back

Electromagnetic Spectrum

Front

Distance between points on a wave (crest to crest).

Back

Wavelength

Front

Theory of exponential expansion of space in the early universe.

Back

Inflation

Front

Matter with parts like ordinary matter but with opposite properties (e.g., positive charge instead of negative)

Back

Anti-Matter

Front

Wavelength of light stretches, appearing 'shifted' to red, indicating universe expansion.

Back

Red Shift

Front

Believed to be at least 10 billion light years in diameter, containing many galaxies, and expanding since the Big Bang 13 billion years ago.

Back

The Universe

Front

Change in frequency/wavelength of a wave due to observer's motion relative to the source.

Back

Doppler Effect

Front

Electromagnetic radiation remnant from the early universe in Big Bang cosmology.

Back

Cosmic Background Radiation

Front

Theory of universe's origin: started with a big bang and has been expanding.

Back

Big Bang

Front

Temperature differences in the cosmic microwave background (CMB) from the Big Bang

Back

Cosmic Background Radiation