Wave (in the context of oceanography)
16.2Understanding Waves and Tides Flashcard

Flashcard
•
English
•
11th Grade
•
Easy
Camilla Altree
Used 1+ times
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20 questions
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1.
FLASHCARD QUESTION
Front
Back
A disturbance that transfers energy through water
Answer explanation
In oceanography, a wave is defined as a disturbance that transfers energy through water, making this the correct choice. Other options describe different ocean phenomena but do not accurately define a wave.
2.
FLASHCARD QUESTION
Front
What best describes a tide?
Back
The periodic rise and fall of sea level caused by gravitational forces
Answer explanation
The correct choice describes tides as the periodic rise and fall of sea level, which is primarily caused by the gravitational forces exerted by the moon and the sun on Earth's oceans.
3.
FLASHCARD QUESTION
Front
Property of a wave that measures the distance between two consecutive crests.
Back
Wavelength
Answer explanation
The property of a wave that measures the distance between two consecutive crests is called wavelength. It is a key characteristic that defines the spatial period of the wave.
4.
FLASHCARD QUESTION
Front
Characteristic of a spring tide?
Back
Occurs during the full and new moons
Answer explanation
A spring tide occurs when the sun and moon are aligned, which happens during the full and new moons. This alignment results in the highest tidal ranges, unlike neap tides that occur at right angles.
5.
FLASHCARD QUESTION
Front
Calculate the speed of a wave with a wavelength of 10 meters and a frequency of 2 Hz.
Back
20 m/s
Answer explanation
The speed of a wave is calculated using the formula: speed = wavelength × frequency. Here, speed = 10 m × 2 Hz = 20 m/s. Therefore, the correct answer is 20 m/s.
6.
FLASHCARD QUESTION
Front
Explain the difference between a spring tide and a neap tide.
Back
Spring tides occur during the full and new moons, while neap tides occur during the first and third quarters of the moon.
Answer explanation
Spring tides occur during the full and new moons when the sun, moon, and Earth align, resulting in the largest tidal range. Neap tides occur during the first and third quarters of the moon, leading to the smallest tidal range.
7.
FLASHCARD QUESTION
Front
Describe how ocean currents are formed.
Back
By the rotation of the Earth and wind patterns
Answer explanation
Ocean currents are primarily formed by the rotation of the Earth and wind patterns. The Coriolis effect, caused by Earth's rotation, influences the direction of these currents, while winds drive surface water movement.
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