Description

Worksheet Contents

• This worksheet covers:

• Definition of a sound wave

• Generation of sound waves

• Compressions and rarefactions

• Graphical representations of sound waves

• Frequency, wavelength and speed of sound

• Pitch and loudness

• The decibel scale

• Human perception of sound

• Transmission, reflection and absorption of sound waves

• Includes:

• Unit outline.

• Cloze activity (fill in the blanks).

• Short-answer questions.

• Extension questions.

• Topics for further research.

• Teacher version containing complete answers.

• Aligned to the Australian Year 9 Science curriculum.

• 11 pages.

Learning Outcomes

• By the end of this worksheet students will be able to:

• ☑   Define what sound waves are and explain how they are generated.

• ☑   Describe compressions and rarefactions.

• ☑   Draw and interpret graphical representations of sound waves.

• ☑   Describe the relationship between frequency and pitch, and between amplitude and loudness.

• ☑   State the frequency range of human hearing and define ‘infrasound’ and ‘ultrasound’.

• ☑   Compare sounds with different intensities and decibel levels.

• ☑   Perform calculations involving the frequency, wavelength and velocity of a sound wave.

• ☑   Perform calculations involving distance, time and velocity of a sound wave.

• ☑   Describe the behaviour of sound waves when they encounter different types of boundaries.

This resource is also included in the Year 9 Physics PDF Workbook.

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