Tides & Currents

Front

What causes tides?

Back

Tides are caused by the force of gravity from the moon and the Sun.

Front

What primarily drives surface currents in the ocean?

Back

Surface currents are mainly driven by wind.

Front

What happens to gravity when an object's mass increases?

Back

If an object has more mass, then it has more gravity.

Front

What type of tide occurs during a full moon or new moon?

Back

Spring tide.

Front

What is true about cold water?

Back

Cold water is dense and sinks.

Front

Define 'tide'.

Back

A tide is the rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun.

Front

What is a 'current'?

Back

A current is a continuous, directed movement of seawater generated by various forces acting upon it.

Front

What are spring tides?

Back

Spring tides are higher than normal tides that occur during the full moon and new moon phases.

Front

What are neap tides?

Back

Neap tides are lower than normal tides that occur during the first and third quarters of the moon.

Front

How does temperature affect water density?

Back

Cold water is denser than warm water, causing it to sink.