Waves

Waves

1. A wave is a vibration transmitted through a medium or a vacuum. Waves carry energy and information from one point to another, but they do not transfer matter. Waves always travel in a straight line.

2. Types of wave

   • Transverse
     • The vibrations of the particles are at right angles/perpendicular to the direction the wave is travelling in.
       • Examples: water waves, electromagnetic waves and s-type earthquake waves.
   • Longitudinal
     • The vibrations of the particles are parallel/ in the same direction as the wave is travelling in.
       • Examples: sound waves, ultrasound waves, p-type earthquake waves.

3. Definitions

   • Wave

4. Transverse

   • The vibrations of the particles are right angles/perpendicular to the direction the wave is travelling in.
     • Examples: water waves, electromagnetic waves and s-type earthquake waves.

5. Longitudinal

   • The vibrations of the particles are parallel/ in the same direction as the direction the wave is travelling in.
     • Examples: sound waves, ultrasound waves and p-type earthquake waves.

6. A wave is a vibration transmitted through a medium or a vacuum. Waves carry energy and information from one point to another, but they do not transfer matter. Waves always travel in a straight line.

7. Definitions

   • Wavelength: the distance between 2 consecutive crests or troughs, i.e., the full length of the wave.
   • Amplitude: the greatest/maximum displacement from the waves undisturbed position.
   • Speed: the distance moved per second.
   • Frequency: the number of complete waves that pass a fixed point in one second
   • Periodic Time: the time taken for one complete wave to pass a point.

8. Equation: V=F/wavelength