The Big Bang Theory

The distance a galaxy is from Earth and the velocity it is traveling are related. Explain the relationship between these two factors. Select the most appropriate words as you construct your explanation.

• Galaxies farther from Earth are moving toward Earth faster than galaxies closer to Earth. This serves as evidence that the universe is remaining the same size.

• Galaxies farther from Earth are moving away from Earth slower than galaxies closer to Earth. This serves as evidence that the universe is contracting/remaining the same size.

• Galaxies farther from Earth are moving away from Earth faster than galaxies closer to Earth. This serves as evidence that the universe is expanding.

The Big Bang Theory allows scientists to extrapolate back in time and conclude that the universe _____________________.

• was hotter and denser in the past and emerged from a very tiny region and expanded

• was cooler and less dense in the past

• consisted primarily of carbon and oxygen in the past

• consisted of one star with eight orbiting planets

Describe how the composition of elements in the universe provides evidence of the Big Bang Theory. Select the most appropriate words as you construct your explanation.

• The spectra of electromagnetic radiation from stars suggests that stars and interstellar gases are composed of 75% carbon and 25% helium as predicted by the Big Bang Theory. In addition visible light that fills the universe is the remnants of the radiation released during the Big Bang. Collectively these lines of evidence support the concept that structures cannot be created or destroyed-only moved between one place and another place, between objects and/or fields, or between systems.

• The spectra of electromagnetic radiation from stars suggests that stars and interstellar gases are composed of 75% hydrogen and 25% oxygen as predicted by the Big Bang Theory. In addition cosmic microwave background radiation that fills the universe is the remnants of the radiation released during the Big Bang. Collectively these lines of evidence support the concept that energy cannot be created or destroyed-only moved between one place and another place, between objects and/or fields, or between systems.

• The spectra of electromagnetic radiation from stars suggests that stars and interstellar gases are composed of 75% hydrogen and 25% helium as predicted by the Big Bang Theory. In addition cosmic microwave background radiation that fills the universe is the remnants of the radiation released during the Big Bang. Collectively these lines of evidence support the concept that energy cannot be created or destroyed-only moved between one place and another place, between objects and/or fields, or between systems.

• The spectra of electromagnetic radiation from stars suggests that stars and interstellar gases are composed of 75% hydrogen and 25% nickel as predicted by the Big Bang Theory. In addition visible light that fills the universe is the remnants of the radiation released during the Big Bang. Collectively these lines of evidence support the concept that patterns cannot be created or destroyed-only moved between one place and another place, between objects and/or fields, or between systems.

Wave speed is expressed through the mathematical relationship v=fλ where v is .... f is..... and λ is...?

• Wave speed is expressed through the mathematical relationship v=fλ where v is the wavelength, f is the speed of light, and λ is the frequency.

• Wave speed is expressed through the mathematical relationship v=fλ where v is the speed of light, f is the frequency of the wave, and λ is the wavelength.

• Wave speed is expressed through the mathematical relationship v=fλ where v is the frequency of a wave, f is the wavelength, and λ is the speed of light.

The tool that separates a narrow beam of white light from stars into a range of colors is called a __.

• radio telescope

• spectroscope

• refractive telescope

• microscope

When light changes from one medium to another, such as traveling from outer space to Earth's atmosphere, which statement correctly describes what aspects of the light wave change and what aspects don't? Be sure to consider cause vs. effect.

• Changing medium causes changes in speed, which has the effect of changing the wavelength since the frequency stays the same.

• Changing medium causes changes in wavelength, which has the effect of changing the frequency since the speed stays the same.

• Changing medium causes changes in frequency, which has the effect of changing the wavelength since the speed stays the same.

• Changing medium causes changes in speed, which has the effect of changing the frequency since the wavelength stays the same.