Tides

Front

Which term best describes the rise and fall of the ocean's water level?

Back

Ceaseless

Front

Which of the following is a true statement about gravity?

Back

It acts on all matter in the universe.

Front

Why does the moon have a greater effect on tides than the sun?

Back

The moon is much closer than the sun.

Front

High tides occur:

Back

On the side of the earth facing the moon, and also the opposite side.

Front

Based on information from the movie, what would you expect to happen to the number of high tides in any given area if the rate of earth's rotation doubles?

Back

They will occur about twice as often

Front

At one beach, high tide occurs at 8 a.m. When will the next high tide most likely occur?

Back

8 p.m

Front

Which of the following is a true statement about tidal energy?
- It's easy to harness
- It's more efficient than solar energy
- It's more powerful than the energy we get from fossil fuels
- It causes very little pollution

Back

It causes very little pollution

Front

What might happen on a beach as the tide goes out?

Back

There will be more sand for beachgoers to sunbathe on.

Front

What might happen if the moon were only half as large as it is now?

Back

The ocean level would rise and fall less dramatically

Front

The moon's gravity affects:
- Both the solid parts of the earth and the oceans
- The solid parts of the earth only
- The oceans only
- The moon only

Back

Both the solid parts of the earth and the oceans