6.1 Loudness and pitch of sound

22 March 2023
Unit 6.1 Loudness and Pitch of a Sound
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Slide 1: Tekstslide
PhysicsSecondary EducationAge 12,13

In deze les zitten 37 slides, met interactieve quizzen, tekstslides en 6 videos.

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22 March 2023
Unit 6.1 Loudness and Pitch of a Sound

Slide 1 - Tekstslide

Content objectives
  • Describe what is meant by the amplitude of a sound
  • Explain how the loudness of a sound depends on the amplitude of the sound wave
  • Describe what is meant by the frequency of a sound wave
  • Explain how the pitch of a sound depends on the frequency of the sound wave
  • Recognise the changes in amplitude and frequency from a graph of the wave or an oscilloscope display

Slide 2 - Tekstslide

Would you hear a sound in outer space?
Key Question
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Slide 3 - Tekstslide

Slide 4 - Video


Which of these is common to all objects that make a sound?
A
They all have particles.
B
They are all in a vacuum.
C
They have particles that are compact.
D
They all carry light.

Slide 5 - Quizvraag

Slide 6 - Tekstslide


Sound is made when objects vibrate. 
I agree.
I disagree.

Slide 7 - Poll

Slide 8 - Tekstslide

Slide 9 - Tekstslide

Definition: Loudness
- a way to describe how quiet or loud a sound appears
Can you hear this?

Slide 10 - Tekstslide

Slide 11 - Video

  • how much the object is vibrating
Loudness depends on...
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Slide 12 - Tekstslide

  • how far away the vibrating object is
Loudness depends on...
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Slide 13 - Tekstslide

Slide 14 - Video


The movement of particles in the air is difficult to draw in a sound wave, but it is easier to draw in a graph.
I agree.
I disagree.

Slide 15 - Poll

Slide 16 - Tekstslide

  • shape of the graph of a sound
Waveform 
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Slide 17 - Tekstslide

  • shape of the graph of a sound
Waveform 
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peak
trough

Slide 18 - Tekstslide

Slide 19 - Link


Which waveform shows a louder sound?

Slide 20 - Poll

Slide 21 - Tekstslide


Which of the following is the name given to the equipment shown?
A
photometre
B
sound metre
C
oscilloscope
D
caleidoscope

Slide 22 - Quizvraag

What do you see in an oscilloscope?
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Slide 23 - Tekstslide

22 March 2023
Unit 6.1 Loudness and Pitch of a Sound

Slide 24 - Tekstslide

Slide 25 - Tekstslide


Which of these lengths of ruler causes a higher pitch of sound?
20 cm
10 cm

Slide 26 - Poll

Definition: Frequency
- the number of vibrations in each second (or per second)

Slide 27 - Tekstslide

Slide 28 - Tekstslide

Slide 29 - Link

Slide 30 - Tekstslide


Which waveform shows a higher pitch?

Slide 31 - Poll

Slide 32 - Video

Slide 33 - Video

Slide 34 - Video

Group Task
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  • Gather together as a team.
  • Accomplish the given tasks.
  • Present your output.

Slide 35 - Tekstslide

Plenary (Sharing)

Slide 36 - Tekstslide

What's next?
End of Unit 3 Assessment

Slide 37 - Tekstslide