click below
click below
Normal Size Small Size show me how
chapter 20jg
chapter 20 notes
Question | Answer |
---|---|
Wave | any disturbance that transmits energy through matter or space |
Medium | is a substance through which a wave can travel |
Energy transfers through a medium | by vibrations of particles |
Sound waves | travels by the vibrations of particles in liquids, solids, and gases. If there isn’t particles to vibrate no sound is made |
Ocean waves | are waves that travel through water |
Electromagnetic waves | are waves that don’t require a medium |
Electromagnetic waves examples | visible light, TV signals, radio signals, x-rays, and microwave ovens |
Classifying waves | based on the direction in which that particles of the medium vibrate compared with the direction in which the wave travels |
Transverse waves | waves in which the particles vibrate in up-and-down motion |
Longitudinal | particles of the medium vibrate back and forth along the path that the wave travels |
Amplitude | the maximum distance the wave vibrates from its rest position |
Wave length | the distance between any two adjacent crests or compressions in the series of waves |
Frequency | the number of waves produced in a given amount of time |
Wave speed | the speed at which a wave travels |
Wave speed formula | wave speed equals wavelength times frequency |
Reflection | occurs when a wave bounces back after striking a barrier |
Refraction | is the bending of a wave as it passes at an angle from one medium to another |
Diffraction | the bending of waves around a barrier or through an opening |
Interference | when two or more waves overlap when they share the same space |