Question

fill in the blank(s) with the correct answer for 6-9.

1. compressions are places where the waves are ________________ and rarefactions are where the waves are ________________.
2. as wavelength of a wave decreases, the __________________ increases.
3. the measurement of a wave’s height is known as its __________________.
4. the highest parts of a wave are called ________________ and the lowest parts are called ________________.

Explanation:

Question 6

In wave physics (specifically for longitudinal waves like sound), compressions are regions where particles are close together (waves are compressed), and rarefactions are regions where particles are spread out (waves are rarefied).

The relationship between wavelength ($\lambda$), frequency ($f$), and speed ($v$) of a wave is given by the formula $v = f\lambda$. Assuming the speed of the wave remains constant (for example, in a given medium for light or sound under constant conditions), if the wavelength ($\lambda$) decreases, the frequency ($f$) must increase because $f=\frac{v}{\lambda}$.

In the study of waves (both transverse and longitudinal), the height of a wave (the maximum displacement of a point on the wave from its rest position) is defined as the amplitude. For a transverse wave, it's the distance from the equilibrium position to the crest or trough. For a longitudinal wave, it relates to the maximum compression or rarefaction intensity, but the term "amplitude" is still used to describe this maximum displacement.

Answer:

compressed; rarefied

Question 7