Waves Flashcards
(15 cards)
Identify a variety of waves in the real world
Gamma rays, sound waves , light waves and water waves.
Identify that waves are a vibration
waves are vibration that can be effecting by the amplitude and frequency of the vibration.
Describe the effect of larger vibrations on a sound
The effect is that it increses the amplitude .
Describe the effect of faster and slower vibrations on a sound
The frequency will increase or decrease.
Identify potential sources for different types of wave
Sound: speaking and wind
Light: When you activate a bulb, fire
Water waves: From the sea
Earthquake: tectonic plates
Describe the direction in which waves travels from a source
Light: All directions
Sound: longitudes waves, straight
Water: Transverse waves
Explain why wave diminish as you move further away
Each line a particle bumps into another to transfer the vibration but the air particles take a bit of energy and so the amplitude gets weaker.
What is the medium
The material that the wave travels through, allowing it to transfer energy.
Recognise that as a wave travels forward, the medium does not
the wave transfers energy not mass
Recall the definition of a wave
A transfer of energy, without mass.
Compare the movement of particles to the direction a wave is travelling
Transverse: where the MOP is perpendicular to DAWIT
Explain how vibrations are passed through a speaker
The diaphragm vibrates after receiving an electric current
Explain why sound will not travel through a vacuum
Sound cannot travel through a vacuum because the vacuum has no air particles or medium to allow it to
Draw a basic ray diagram
To draw a basic ray diagram you use straight lines
Recall that waves can be transmitted, absorbed or reflected
Transmitted: go through the medium
Reflected: bounces of the medium
absorbed: Cannot do any of the above and get sucked in the source
