2024 Fall Semester Final Review - Part 1

Front

What happens to the brightness of red light when its amplitude is increased?

Back

The brightness of red light increases.

Front

What does a blue shift in the spectrum of a galaxy indicate?

Back

The galaxy is moving towards us.

Front

What can be inferred about a main sequence star located in the upper left of a temperature-brightness graph compared to the sun?

Back

It is more massive than the sun.

Front

In a transverse wave, how does the direction of vibration relate to the motion of the wave?

Back

The direction of vibration is perpendicular to the motion of the wave.

Front

In an experiment to see how mass affects the distance a ball rolls off a ramp, what is the independent variable?

Back

The mass of the ball.

Front

What is amplitude in the context of waves?

Back

Amplitude is the maximum extent of a wave's vibration, related to its energy.

Front

What is the significance of a red shift in the spectrum of a galaxy?

Back

A red shift indicates that the galaxy is moving away from us.

Front

What is the relationship between temperature and brightness for main sequence stars?

Back

Higher temperatures generally correspond to greater brightness.

Front

Define a transverse wave.

Back

A transverse wave is a wave in which the motion of the medium is perpendicular to the direction of the wave.

Front

What is an independent variable in an experiment?

Back

An independent variable is the factor that is changed or controlled in a scientific experiment.