Exoplanet Detection Quiz

How do small planets like Earth affect their stars?

• Their gravitational effect is hard to detect due to their small size.

• They have a significant gravitational pull on their stars.

• They make their stars spin faster.

• They cause their stars to move in large orbits.

What is the main reason large planets like Jupiter have a noticeable effect on their stars?

• They have a faster orbit.

• They emit more light.

• They have a greater gravitational influence due to their size.

• They are closer to their stars.

What phenomenon is used to detect the motion of stars caused by orbiting planets?

• The Doppler effect

• The parallax effect

• The redshift effect

• The gravitational lensing

How does the Doppler effect help in detecting exoplanets?

• By measuring the change in sound frequency

• By observing the change in light frequency

• By detecting the change in temperature

• By analyzing the change in star size

What does the shift from blue to red light indicate about a star's movement?

• The star is moving away from us.

• The star is moving towards us.

• The star is stationary.

• The star is spinning faster.