Pitch

Science: Year 3 & 4 National Curriculum, topic 9.2.1

Pitch

Pitch is how high or low a note or sound seems.

High pitch sounds

High pitch sounds

  • Most small dogs have a high pitched bark.
Low pitch sounds

Low pitch sounds

  • Most large dogs have a low pitched bark.

What Makes High and Low Pitched Sounds

Pitch is how high or low a note or sound seems.

What affects the pitch?

What affects the pitch?

  • The pitch of the sound produced by an object is affected by:
  • The size of the object.
  • The length of the object.
  • The tightness of the object.
Guitar strings

Guitar strings

  • Guitars have 6 strings.
  • Plucking each string produces sounds at different pitches.
The pitch of each string

The pitch of each string

  • Each string produces sounds at different pitches because:
  • Each string is a different thickness.
  • Each string has a different tightness.
    • The pitch of each string can be changed by tightening the strings.

Test yourself on Pitch

  • What is pitch?

  • What affects the pitch of the sound something makes?

Practise this topic for free