Question
100%
§ X
Read the paragraph.
Waves can be classified by the way they displace matter. There are two general types of waves -transverse waves and longitudinal
waves. A transverse wave causes the particles to vibrate perpendicular to the direction of the wave itself, like a water wave. A longitudinal
wave contains particles moving parallel to the direction of the wave, such as a sound wave.
What is the main idea of this paragraph?
O 1. scientists know how to classify waves.
O 2. There are two types of waves-- transverse and longitudinal.
O 3. Particles move either perpendicular or longitudinal to the direction of the wave.
4. There are two different types of waves--water waves and sound waves.
Answer
There are two different types of waves--transverse and longitudinal--and particles move either perpendicular or longitudinal to the direction of the wave.