Ocean Waves and Tides

What are the primary causes of tides?

• Magnetic fields from distant stars

• Underwater volcanic activity

• Global warming effects

• Gravitational forces from the Moon and the Sun

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NGSS.MS-ESS1-1

Explain the difference between high tide and low tide.

• High tide is when the water level is at its highest, and low tide is when it's at its lowest.

• High tide occurs due to the gravitational pull of the moon, and low tide occurs when this pull is weakest.

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NGSS.MS-PS2-4

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Describe the process of wave formation in the ocean.

• Wave formation is caused by the Earth's rotation.

• Waves are formed by wind transferring energy to the water.

• Waves are formed by the moon's gravitational pull.

• Waves are created by underwater volcanoes.

How do waves affect the shoreline?

• Gradually or suddenly

• By creating new land, by causing earthquakes, by attracting marine life

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Why do tides occur twice a day?

• Tides occur due to changes in atmospheric pressure

• Tides are a result of underwater volcanic activity

• Tides are caused by the rotation of the Earth

• Gravitational pull of the moon and sun on Earth's oceans

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NGSS.MS-PS2-4

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What factors influence the height of ocean waves?

• Wind speed, wind duration, and fetch

• Boat traffic, underwater volcanoes, and cloud cover

• Fish population, coral reefs, and ocean currents

• Water temperature, water depth, and moon phase

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How do gravitational forces from the moon and sun contribute to tides?

• Tides occur due to the magnetic pull of the moon and sun, not gravitational forces.

• Tides are caused by the rotation of the Earth, not gravitational forces.

• Gravitational forces from the moon and sun create earthquakes, affecting tides.

• Gravitational forces from the moon and sun create bulges in the Earth's oceans, resulting in tides.

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NGSS.MS-PS2-4

What is the role of wind in wave formation?

• Wind generates heat, causing water molecules to vibrate and form waves.

• Wind transfers energy to the water surface, leading to wave formation.

• Wind causes the water to evaporate, forming waves.

• Wind creates a vacuum effect, pulling water up to form waves.

What is the significance of the fetch in determining wave sizes?

• Fetch refers to the depth of the water, which has no impact on wave sizes.

• Fetch is the distance over which the wind blows without interruption, directly affecting wave sizes.

• Fetch is a type of ocean current that reduces wave sizes.

• Fetch is the term for the temperature of the water, influencing the wave's energy but not its size.

What effect does the moon have on the Earth's oceans?

• It causes the oceans to freeze and thaw.

• It has no significant effect.

• It influences the ocean's tides.

• It changes the chemical composition of seawater.