Exoplanets and Doppler Effect

The following are NASA's "Earth like" criteria:

• Smaller size than Earth, Orbits a "sun like star", within a habitable zone.

• Similar size to Earth, Orbits a "M type" star, within a habitable zone.

• Similar size to Earth, Orbits a "sun like star", within a habitable zone.

• Similar size to Earth, Orbits a "sun like star", close to the sun.

It is important for an exoplanet to be similar to Earth's size because...

• A) If an exoplanet is small, it orbits too fast for life.

• B) If an exoplanet is large, it has violent storms.

• C) If it is small, there is not enough room for rock to form.

• D) A and B are correct answers.

The habitable zone is a specific distance from the sun where the temperature conditions are ideal for life:

• True

• False

Waves have two properties, what are they?

• Mass and Volume

• Distance and Time

• Wavelength and Frequency

• Crest and Troughs

________________ is the distance between two waves troughs or crests.

• Wavelength

• Frequency

• Distance

• Time

Tags

NGSS.HS-PS4-1

______________ is the amount of waves that pass by a fixed point over a period of time.

• Wavelength

• Frequency

• Time

• Distance

A wave source emits sound or light waves at a constant rate:

• True

• False

Tags

NGSS.MS-PS4-1

An observer will only experience the doppler effect if both the source and observer are stationary:

• True

• False

Tags

NGSS.HS-PS4-1

As an emergency vehicle approaches the observer:

• The observer receives a higher frequency of waves, the pitch will sound higher.

• The observer receives a lower frequency of waves, the pitch will sound higher.

• The observer receives a higher frequency of waves, the pitch will sound lower.

• The observer receives a lower frequency of waves, the pitch will sound lower.

As the emergency vehicle drives away from the observer:

• The observer receives a higher frequency of waves, the pitch will sound higher.

• The observer receives a higher frequency of waves, the pitch will sound lower.

• The observer receives a lower frequency of waves, the pitch will sound lower.

• The observer receives a lower frequency of waves, the pitch will sound higher.