Doppler Effect Quiz

According to Sheldon, what is the Doppler effect?

• The change in frequency of a wave caused by relative motion between the source of the wave and the observer

• The change in speed of a wave caused by relative motion between the source of the wave and the observer

• The change in wavelength of a wave caused by relative motion between the source of the wave and the observer

• The change in amplitude of a wave caused by relative motion between the source of the wave and the observer

What happens to the frequency of waves when the source of the waves is moving towards a stationary observer?

• The frequency becomes zero

• The frequency remains the same

• The frequency decreases

• The frequency increases

What is the effect of the Doppler effect on the pitch of sound waves when a vehicle is moving towards a stationary observer?

• The pitch increases

• The pitch becomes zero

• The pitch decreases

• The pitch remains the same

What is the term used to describe the change in frequency of light waves due to the Doppler effect?

• Yellowshift

• Whitshift

• Blueshift

• Redshift

What does a small change in frequency for visible light due to the Doppler effect result in?

• Change in color

• Change in speed

• Change in temperature

• Change in size

What does a higher-frequency light wave indicate in terms of color?

• Bluer light

• Redder light

• Yellow light

• Green light

What can astronomers determine using the Doppler effect on light waves from stars?

• Whether stars are moving away from or towards Earth

• The temperature of the stars

• The size of the stars

• The age of the stars

What is the Doppler effect an important piece of evidence for?

• The Milky Way

• The Solar System

• The Black Hole

• The Big Bang

What does the Doppler effect indicate about the movement of almost everything in the universe?

• Moving in random directions

• Moving away from us very quickly

• Moving towards us very quickly

• Stationary with respect to us

What is the potential consequence of the Earth in the distant future based on the Doppler effect?

• It might get very lonely

• It might collide with another planet

• It might become a part of a different galaxy

• It might disappear suddenly