Quick sound picks

Exercise and reference answers

Questions

1. Question

   Unit of frequency

   Choices

   1. Metre
   2. Hertz
   3. Newton

   Correct choice

   Hertz

2. Question

   Audible range for humans

   Choices

   1. 2-200 Hz
   2. 0-2 Hz
   3. 20-20,000 Hz

   Correct choice

   20-20,000 Hz

3. Question

   Unwanted sound is called

   Choices

   1. noise
   2. music
   3. echo

   Correct choice

   noise

4. Question

   The eardrum sends vibrations to the

   Choices

   1. nose
   2. inner ear
   3. lungs

   Correct choice

   inner ear

Instructions

Pick the right answer before the next one arrives.

Explanation