Spot the odd one

Exercise and reference answers

Questions

1. Items

   1. Rigidity
   2. Density
   3. Loudness
   4. Temperature

   Odd item

   Loudness

2. Items

   1. Compression
   2. Rarefaction
   3. Disturbance
   4. Refraction

   Odd item

   Refraction

3. Items

   1. Still bell
   2. Siren passing
   3. Train whistle
   4. Race car by

   Odd item

   Still bell

4. Items

   1. Damping
   2. Resonance
   3. Amplitude falls
   4. Energy lost

   Odd item

   Resonance

Instructions

One item in each row does not belong. Tap it.

Explanation