What does fetch mean when describing wind-generated waves?
5 Waves and Tides Online Quiz Questions
Use this free practice quiz with 20 questions to review 5 Waves and Tides, test your knowledge, and prepare for your next test or exam.
In ordinary surface waves, water particles mostly travel forward with the wave crest. True or false?
- A
True
- B
False
What term describes waves that travel away from the area where the wind created them?
Wave period is the .
The Moon’s gravitational pull is the main cause of tides, while the Sun makes a smaller contribution.
- A
True
- B
False
At a coastal location, the tide is rising toward high tide. What is the incoming flow of water called?
- A
Ebb current
- B
Slack water
- C
Flood current
Tidal heights are measured relative to a reference level called a .
A location has two high tides and two low tides of roughly similar heights during each lunar day. Which tidal pattern does it have?
- A
One high tide and one low tide per lunar day
- B
Two high tides and two low tides of roughly similar heights per lunar day
- C
Two high tides and two low tides that differ noticeably in height
Select all the factors that chiefly influence the size of wind-generated waves.
- A
Wind speed
- B
The local shape of the ocean basin
- C
How long the wind blows
- D
Fetch over open water
- E
The phase of the Moon
Select all the local conditions that can affect the timing and height of tides by influencing how tidal water moves.
- A
Ocean-basin shape
- B
Coastline shape
- C
Wind fetch
- D
Seafloor depth
- E
Friction
Waves entering shallow water bend so their crests align more nearly with the shoreline. What is this change in direction called?
- A
Longshore drift
- B
Refraction
- C
Slack water
During which arrangement does tidal range tend to be greatest during a spring tide?
- A
The Sun, Moon, and Earth are nearly aligned
- B
The Sun and Moon act from roughly right angles
- C
The tide turns between rising and falling
Explain how waves approaching a coast can change shape and move sediment. Include what happens as they enter shallower water and how waves approaching at an angle can affect sand along the shore.
If wind speed and duration stay the same, how does a greater fetch generally affect wave size?
- A
Wave size generally decreases.
- B
Wave size generally increases.
- C
Wave size is unaffected by fetch.
- D
Waves stop carrying energy forward.
Which conditions would generally produce the largest wind-generated waves?
- A
A short, light wind over a small area of water
- B
A strong wind blowing for a long time over a long stretch of open water
- C
A strong wind blowing briefly over a short stretch of open water
- D
A light wind blowing for a long time over a short stretch of open water
A coast has little local wind, but waves arrive after traveling across the ocean from a distant storm. What are these waves called?
- A
Waves created by tides moving into a bay
- B
Waves that form only when local winds are strong
- C
Waves that have traveled away from the area where the wind created them
- D
Waves that break as soon as they reach shallow water
As sea level rises toward high tide, what is the incoming flow called?
A lunar day lasts about 24 hours and 50 minutes. Express this duration as a whole number of minutes.
At a coastal inlet, the tide has stopped falling and is about to begin rising. Is this turning interval called slack water?
- A
True
- B
False
A coastal location has one high tide and one low tide during each lunar day. What is this tidal pattern called?