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chap 20 waves
Question | Answer |
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Wave- | any disturbance that transfers energy through mattes or space |
Medium | a substance through a wave can travel |
Reflection | the bouncing back of a wave after it strikes a barrier or an object |
Refraction- | 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 | a wave interaction that is caused when two or more waves interact |
Electromagnetic waves | a wave that can travel through space or matter and consists of changing electric and magnetic fields |
Wave speed formula | Speed= wavelength x frequency |
Longitudinal waves moves by | - the particles of a medium vibrate back and fourth along the path in which it travels |
How do transverse waves move | move across or perpendicular to the direction in which it is traveling |
Waves are classified by | the direction in which the particles of a medium vibrate compared to the direction in which it travels |
5 examples | ovens, tv, radio, microwave, x-rays |