Wave Behavior
The Big Bang Theory
Evidence for the Big Bang
Wave Observations
100

The chart that measures different wavelengths of electromagnetic waves, including: radio, light, U.V, Gamma, (etc.) is called the...

Electromagnetic Spectrum

100

The leading scientific explanation for the origin of the universe is known as...

The Big Bang Theory

100

The phenomenon of far away galaxies shifting towards Red light waves is known as...

Red Shift
100

In terms of sound waves, describe what a high pitch would look like.

BONUS (100 pts) What would a low pitch look like?

It would have shorter wavelengths and a higher frequency.

BONUS (100 pts) It would have a longer wavelength and lower frequency.

200

All waves on the electromagnetic spectrum behave _____________, even though we perceive them differently.

Similarly

200

What would the conditions of the EARLY universe have been like?

EXTREMELY tiny, hot and dense

200

The observation of microwave radiation coming from all directions of space is known as...

Cosmic Background Radiation

200

In terms of light waves, describe what the color red would look like. 

BONUS (100 pts) What would blue look like?

It would have longer wavelengths and a lower frequency.

BONUS (100 pts) It would have shorter wavelengths and a higher frequency

300

The characteristic of a wave describing the distance there is between each wave is known as...

Wavelength

300

Once expansion started from the Big Bang, how did the conditions change?

Matter began to cool down, and spread out.

300

Explain why the universe has an abundance of light elements 

BONUS (100 pts) What makes up 98% of the universe

Conditions of the early universe were too hot to create heavier elements. The light elements are the simplest, and the first to form.

BONUS (100 pts) Hydrogen and Helium

300

The apparent distortion of waves to an observer due to the motion of the source is described by...

The Doppler Effect

400

The characteristic of a wave describing how often a wave passes is known as...

Frequency

400

How did the elements found in the universe today form?

With the cooling due to expansion, light elements were able to form. Over time they collected to create stars, which fused atoms to create heavier elements. These collected to form all of the planets and interstellar formations we see today.

400

Why is the discovery of Cosmic Background Radiation evidence for the Big Bang?

Researchers expected to find nothing in empty space, and for the temperature to reach absolute zero. However this radiation and heat may be left over - sourced from the Big Bang.
400

According to the Doppler Effect, when a source is moving towards the observer, how will the waves change?

They will appear to have a shorter wavelength and higher frequency.

"Squish"

500

Wavelength and Frequency have an inverse relationship, what does that mean?

When one increases, the other decreases

*A long wavelength results in a lower frequency and a short wavelength will have a higher frequency*

500

Could there be life elsewhere in the universe? Give reasoning for your answer.

Yes - the universe is vast, old, and constantly expanding. It is probable that there is life beyond our planet.

No - the conditions for life are too complex. It is improbable that there is life beyond our planet.

500

Explain why Red Shift is evidence for the Big Bang.

Outer galaxies appear more red than others - red light has a longer wavelength than blue. According to the Doppler Effect, this means that the galaxies are moving away from us. This is evidence for an expanding universe - meaning that during the origin of the universe, everything would have been very close together.

500

According to the Doppler Effect, when a source is moving away from the observer, how will the waves change?

They will appear to have a longer wavelength and a lower frequency.

"Stretch"