ABIGAIL HILL

• 5/28/15
• 3rd Block

WHAT IS A WAVE?

• It is a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium.

WHAT ARE THE TWO TYPES OF WAVES?

• Transverse
• Longitudinal

Transverse- a wave in which the particles of the medium move perpendicular to the direction the wave is traveling, particles move up and down while the wave moves left and right.

Longitudinal- a wave in which the particles of the medium vibrate parallel to the direction of wave motion, the wave and the particles move in the same direction.

EXAMPLE OF A TRANSVERSE WAVE AND A LONGITUDINAL WAVE

• Transverse- a vibrating string
• Longitudinal- seismic P

REFLECTION, REFRACTION, AND DIFFRACTION

• Reflection- the bouncing back of a wave when it meets a surface or boundary.
• Refraction- the bending of waves when they pass from one medium into another.
• Diffraction- the bending of waves as they pass an edge.

HOW DO WE CALCULATE THE VELOCITY OF A WAVE?

• Velocity= Frequency x Wavelength

CONSTRUCTIVE AND DESTRUCTIVE INTERFERENCE

• Constructive- any interference in which waves combine so that the resulting wave is bigger than the original waves.
• Destructive- any interference in which waves combine so that the resulting wave is smaller than the largest of the original waves.

ONE INTERESTING THING

• Dolphins use sound waves to communicate with each other.