2024 Fall Semester Final Review - Part 3

Front

What is the main difference between a radio wave and an x-ray?

Back

The main difference is their wavelength; radio waves have longer wavelengths than x-rays.

Front

What do we call the part of an experiment that remains constant throughout?

Back

Constants are the parts of an experiment that do not change.

Front

What happens to frequency and wavelength when the speed of a wave remains constant?

Back

If speed stays the same, frequency and wavelength both change.

Front

Back

Front

What type of stars become brighter as they reach old age and expand?

Back

Massive stars become brighter as they reach old age and expand.

Front

Define wavelength in the context of waves.

Back

Wavelength is the distance between successive crests of a wave.

Front

What is frequency in physics?

Back

Frequency is the number of occurrences of a repeating event per unit of time.

Front

Explain the relationship between speed, frequency, and wavelength.

Back

The speed of a wave is equal to its frequency multiplied by its wavelength: Speed = Frequency × Wavelength.

Front

What is the difference between independent and dependent variables in an experiment?

Back

The independent variable is manipulated, while the dependent variable is measured.

Front

What is the significance of constants in scientific experiments?

Back

Constants ensure that the experiment is fair and that the results are due to the independent variable.