Lesson 3 — Discussing the test sound

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

Discussing the test – Sound

This lesson:

• Handing out the test.
• Comparing your test to the answers sheet.
• Discussing important questions.
• Recap

Sound — What we covered

• Sound waves
  
• Detecting sound — The ear
  
• Loudness and the decibel scale
  
• Frequency and pitch
  
• Frequency, wavelength, amplitude, wave speed
  
• Sound calculations
  
• Echoes
  

Checking the test

•  Step 1: Get your test back

• Step 2: Get the correct answer sheet for your version of the test.

• Step 3: Compare your answers to the answer sheet

• Step 4: We will discuss the test classically

Physical and chemical changes

What is the difference?

• Physical — appearance or the form changes, but not the matter
• Chemical — The kind of matter changes

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From next week onward we will be working with the chemistry booklet