Sort each item by what it belongs to

Exercise and reference answers

Items

1. Item

   Crest and trough

   Category

   Travelling wave

2. Item

   Wavelength

   Category

   Travelling wave

3. Item

   Wave number k

   Category

   Travelling wave

4. Item

   Nodes

   Category

   Standing wave

5. Item

   Antinodes

   Category

   Standing wave

6. Item

   Two waves meet

   Category

   Standing wave

7. Item

   Elastic property

   Category

   The medium

8. Item

   Needed to travel

   Category

   The medium

Categories

1. Item

   Travelling wave

2. Item

   Standing wave

3. Item

   The medium

Instructions

Tap an item, then tap the box it belongs in.

Explanation