Tidal Patterns

Which picture accurately depicts the position of the earth, moon, and sun during a spring tide?

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NGSS.MS-ESS1-1

Which picture accurately depicts the positions of the earth, moon, and sun during a neap tide?

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NGSS.MS-ESS1-1

When do spring tides occur?

• They occur when the sun, moon, and Earth are aligned. In spite of their name, these tides occur all year long.

• They occur when the sun, moon, and Earth are at 45-degree angles from each other. This happens once every spring.

• They occur when the sun, moon, and Earth are aligned. In spite of their name, these tides occur twice a year in the spring and fall.

• They occur on the date of the vernal equinox each year, no matter what stage the moon is in. This is why they are called spring tides.

Answer explanation

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Tags

NGSS.MS-ESS1-1

Which description best tells how the arrangement of the sun, moon, and the earth affect the range of the tides during a spring tide?

• Because the earth, moon, and sun are in alignment, the pull of the moon and sun act in the same direction, causing the highest high tides and the lowest low tides.

• Because the earth, moon, and sun are all out of alignment, the pull of the moon and sun act in the opposite direction causing the highest high tides and the lowest low tides.

• Because the earth, moon, and sun are all in alignment, the pull of the moon and sun act in the same direction causing the lowest high tides and the highest low tides.

• Because the earth, moon, and sun are all out of alignment, the pull of the moon and sun act in the opposite direction, causing the lowest high tides and the highest low tides.

Answer explanation

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Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which term best describes the same pattern of tides on Earth throughout the day?

• semidiurnal tides

• neap tides

• spring tides

• nocturnal tides

Which phrase best describes a semidiurnal tide pattern?

• two high tides and two low tides each day

• two high tides and two low tides each season

• two high tides and two low tides each year

• two high tides and two low tides each month

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Which statement best explains how power is generated in a tidal power plant?

• A barrage holds water at high tide, when the water is released, it turns the plant's turbines.

• As the water flows through a barrage at high and low tides, it turns the plant's turbines.

• A barrage holds water back when the tides change, the force of this turns the plant's turbines.

• A barrage releases water as the tide comes in and goes out, turning the plant's turbines.

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NGSS.MS-PS3-5

How do tidal power plants generate electricity?

• A barrage stores water during high and low tide. When the water is released, it turns the plant's turbines.

• A barrage allows water to flow during high and low tide, this turn's the plant's turbines.

• A barrage holds back water during high tide. The force of the water against the barrage turns the plant's turbines.

• A barrage stops water from flowing out at low tide, creating a force that turns the plant's turbines.

Tags

NGSS.MS-PS3-3

What holds tidal water before releasing it through a turbine?

• tank

• barrage

• boat

• dam

Which part of a tidal power plant is the tidal water pushed through to generate electricity?

• turbine

• barrage

• boat

• dam