CSA 8.PS4.1 ESSENTIAL STANDARD

All waves carry

• energy.

• light.

• matter.

• particles.

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DOK1

Letter D represents the __________ of the wave.

• amplitude

• crest

• frequency

• wavelength

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DOK1

As time passes, which of these is decreasing?

• amplitude

• crest

• trough

• wavelength

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DOK1

Which wave has the highest amplitude?

• 
• 
• 
• 

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DOK2

The periodic up-and-down movement of ocean waves is a form of kinetic energy. This kinetic energy is converted into electricity by placing equipment on the surface of the oceans that captures the energy produced by the wave movement. The energy transformation then occurs: kinetic or mechanical energy to electrical energy. The greater the kinetic energy, the more electrical energy that will be generated. We know that wave energy is a function, in part, of wave amplitude. Wave amplitude will be increased as the __________ also increases.

• tide

• solar energy

• force of the wind

• depth of the water

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DOK2

The wave pictured represents a sound wave. Which label along the wave represents a sound with the LOWEST energy?

• A

• B

• C

• D

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DOK2

The image shows a child sending waves through a jump rope tied to a tree. If the height of the wave suddenly increased, which statement explains the change to the rope waves?

• The child pulled the rope towards them.

• The child shook the rope with more energy.

• The child cut half of the rope length off.

• The child shook the rope with less energy.

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DOK2

Consider any ocean wave. What is the relationship between an ocean wave and the energy of that wave?

• Wave energy decreases as the wave moves closer to shore.

• The greater the wavelength, the more kinetic energy the wave has.

• Wave energy is directly proportional to the amplitude of the wave.

• Wave energy increases with frequency and decreases with wavelength.

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DOK3

Elaborate on the difference between the energy of the two waves seen here:

• Wave B has more energy: the amplitude of Wave B is double that of Wave A.

• Wave B has more energy than Wave A because the frequency of Wave B is greater.

• Wave A has more energy than Wave B because the wavelength of Wave A is greater.

• Wave energy is directly proportional to frequency and wavelength, therefore Wave A has more energy.

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DOK3

Two birdsongs are represented by the two models of a wave shown here. Which statement explains the difference between the two birdsongs?

• The birdsong on the left is louder because the wavelength is longer.

• The birdsong on the right is louder because it has a higher frequency.

• The birdsong on the left has a higher pitch because it has a longer wavelength.

• Both birdsongs have the same volume because they have the same amplitude.

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DOK3