Skills Worksheet - Copley



Name ______________________________

Chapter 15: Waves

Section 1: Types of Waves - Read pages 505-513 and answer the following questions.

1. Give three examples of mechanical waves, and identify the medium through which they travel (p 506).

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2. Name the one type of wave that does not require a medium (p 506). _______________________

3. Describe the motion of the particles in the medium for each type of wave. How does this motion compare to the direction the wave travels? (p 511-512)

a. transverse wave: ____________________________________________________________

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b. longitudinal wave: ___________________________________________________________

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4. Use the figure below to answer the following questions. The figure shows a pattern of wave fronts that are formed when a pebble is dropped into a pool of water (p 507).

a. Compare the height of the wave fronts in circles A, B, and C.

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b. Indicate the wave front in which the energy of the wave is most spread out.

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c. Compare the amount of total energy in each of the wave fronts.

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5. Identify the medium for the following waves:

a. Ripples on a pond _________________________

b. Sound waves from a stereo speaker _________________________

c. Seismic waves _________________________

d. Waves on a spring _________________________

e. Ocean waves _________________________ TURN OVER!

6. Describe the motion of a water molecule on the surface of the ocean as a wave passes by (p 513).

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7. Why would a supernova explosion in space be seen but not heard on Earth?

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Name ______________________________

Chapter 15: Waves

Section 2: Characteristics of Waves - Read pages 514-523 and answer the following questions.

1. State the wave property or characteristic described in each of the following: (p 514-516)

a) measures the amount of particle vibration ____________________________

b) measures the distance from any point on a

wave to an identical point on the next wave ____________________________

c) measures how long it takes for a complete wave

oscillation to occur ____________________________

d) measures the rate of particle vibration ____________________________

2. Identify two ways to determine wave speed (p 518-519).

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3. In the table, indicate the changes that occur in the properties of a sound wave (frequency, pitch, wavelength, and wave speed) as a person experiences the Doppler Effect (p 522-523).

| |Increases |Decreases |Stays the same |

|As a source of sound moves toward a person | | | |

| | | | |

|As a source of sound moves away from a person | | | |

| | | | |

4. Calculate the following for waves produced when you tap your finger in a pool of water twice each second.

a) What is the frequency of the waves you are generating? What is the period of the waves?

b) If the waves travel away from your finger with a speed of 1 m/s, what is their wavelength?

5. How are the frequency and period of a wave related? (p 516)

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6. Why do sound waves travel faster in solids or liquids than in air? (p 520-521)

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Name ______________________________

Chapter 15: Waves

Section 3: Wave Interactions - Read pages 524-529 and answer the following questions.

1. Describe the behavior of the waves in the following situations, and give an example of each type of behavior (p 524).

a. Waves strike a surface or boundary.

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b. Waves pass an edge or an opening.

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c. Waves pass from one medium to another.

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d. Waves pass through another wave.

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2. Draw and label a wave that will interfere constructively, and draw the resulting wave produced (p 527).

3. Draw and label a wave that will interfere destructively, and draw the resulting wave produced (p 528).

4. Draw a standing wave and label the nodes and antinodes (p 529).

TURN OVER!

5. Explain why you can hear two people talking even after they walk around a corner? (p 525)

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