chapter 3 quizzes (final exam)

Which of the following wave properties would be the best way to measure the height of a wave?

Amplitude

Wave and tidal energy projects are possible because of the Law of Conservation of Energy. Would they still be possible if the ocean were an isolated system? Explain your answer in terms of how matter and energy are exchanged in systems.

If the ocean were an isolated system wave and tidal projects would not be possible because in a isolated system matter and energy can't be exchanged.

Compare and contrast open, closed, and isolated systems. Be sure to discuss the exchange of energy and exchange of matter, and provide at least one example of each.

In an open system energy and matter can leave freely. The ocean is an example of an open system. A closed system only allows energy to move back and forth freely but not matter. A greenhouse is an example of a closed system. In an isolated system energy and matter can't be exchanged. An example of an isolated system is our universe.

What happens when a sound wave moves from water to air?

It slows down.

Which of the following is not true about the Law of Conservation of Energy?

It states that the total energy in the universe keeps increasing.

As marine animals swim in the ocean, their muscles are doing work and converting energy from the animals' food into which of the following types of energy?

Kinetic energy

Water is harnessed to move a turbine. How is energy converted in this case?

Kinetic energy is converted to electrical energy.

A severe storm has churned up the water and sediment along a coastline, causing the water to appear cloudy. How would this most likely affect the marine ecosystem?

Light waves would be more likely to be refracted or diffracted, thus failing to reach plants and phytoplankton.

Which type of wave requires a medium in which to travel?

Mechanical

What factor will most likely determine where a wave current project can be located?

Presence of waves

When two mechanical waves have a displacement in the same direction, and they overlap, what will the resulting wave look like and why?

The new wave will have a greater displacement than either of the original waves due to constructive interference.

Hydrophones help scientists listen to and record sounds from the ocean. Which statement best describes how ocean water affects sound waves?

Warm water increases the speed of sound.

On the following diagram, what part of a wave is shown by letter B?

Wavelength