Question

1. a deep water wave:

travels in water shallower than one - twentieth its wavelength.
can only originate in the southern ocean.
travels in water deeper than one - half of its wavelength.
can only originate in the arctic ocean.
travels from the coast out to the open ocean.
question 9
2 pts

1. the speed of shallow water waves depends on:

surface tension.
depth.
gravity.
wavelength.
temperature.

Explanation:

Question 8

To determine the correct option for a deep - water wave, we analyze each choice:

• The option "travels in water shallower than one - twentieth its wavelength" is incorrect. This description is for shallow - water waves, not deep - water waves.
• The options "can only originate in the Southern Ocean" and "can only originate in the Arctic Ocean" are wrong. Deep - water waves can originate in any ocean where the water depth meets the required condition, not just specific oceans.
• The option "travels from the coast out to the open ocean" is incorrect. Deep - water waves typically travel in the open ocean, and waves moving from the coast to the open ocean do not fit the definition of deep - water waves.
• The correct characteristic of a deep - water wave is that it travels in water deeper than one - half of its wavelength. This is the key defining feature of deep - water waves.

To find the factor on which the speed of shallow - water waves depends, we examine each option:

• Surface tension is not a factor that determines the speed of shallow - water waves. Surface tension is more relevant for very small - scale waves like capillary waves.
• The speed of shallow - water waves depends on the depth of the water. The formula for the speed of shallow - water waves ($v=\sqrt{gd}$, where $g$ is the acceleration due to gravity and $d$ is the water depth) shows that depth is a key factor.
• While gravity is involved in the formula, the speed of shallow - water waves is more directly dependent on depth. The formula shows that depth has a direct impact on the wave speed.
• Wavelength is a factor for deep - water waves (where $v = \sqrt{\frac{g\lambda}{2\pi}}$), not for shallow - water waves.
• Temperature does not have a direct impact on the speed of shallow - water waves.

Answer:

travels in water deeper than one - half of its wavelength.

Question 9