Astronomy 4th 9wks Exam

The idea of "redshift" comes from which physical idea?

• Coriolis effect

• Nuclear fusion

• Angular momentum

• Doppler effect

Which scientist figured out the Cepheid variable relationship?

• Edwin Hubble

• Annie Jump Cannon

• Henrietta Swan Leavitt

• William Herschel

What does Hubble's Law imply about the universe?

• It is contracting over time

• It remains static and unchanging

• It is expanding over time

• It oscillates between expansion and contraction

Tags

NGSS.HS-ESS1-2

How is the speed at which a galaxy is moving away from us determined using Hubble's Law?

• By measuring its temperature

• By observing its color spectrum

• By calculating its mass

• By determining its size

Tags

NGSS.HS-ESS1-2

The speed of light...

• a. gets faster when the source is accelerating

• b. gets slower when the source is slowing down

• Never changes

• both a. and b. answers

The special theory of relativity was derived by:

• Galileo
• Newton
• Einstein
• Sitter

Finish this phrase "Matter tells spacetime how to curve, spacetime tells matter how to ______"

• move
• collapse
• expand
• rest

Tags

NGSS.HS-PS2-4

Hubble's Law states that most galaxies are receding away from us at a speed that is proportional to their

• size.

• mass.

• quasars.

• distance

Tags

NGSS.HS-ESS1-2

What is the most important an most difficult quantity to measure in Astronomy?

• Distance

• Luminosity

• Gravity

• Doppler Shift

Tags

NGSS.HS-PS2-4

NGSS.HS-PS4-3

Which of the following IS NOT one of the four basic types of galaxies in our known Universe?

• Spiral galaxies

• Elliptical Galaxies

• Irregular galaxies

• Bright Reflection galaxies