Waves Flashcards
What are sounds caused by?
Vibrations
Fast vibrations have a ??? pitch
High pitch
Slow vibrations have a ??? pitch
Low pitch
High pitched sounds vibrate at a ??? speed
Fast speed
Low pitched sounds vibrate at a ??? speed
Slow speed
What is the frequency of a wave?
The number of waves that pass a certain point in a second
What is frequency measured in?
Hertz (Hz)
What is a transverse wave?
A wave where the particles oscillate perpendicular to the direction the wave travels
What is a longitudinal wave?
A wave where the particles oscillate parallel to the direction the wave travels
What is the peak of a wave?
The highest point of a wave
What is the trough of a wave?
The lowest point of the wave
What is the highest point of the wave called?
The peak/crest
What is the lowest point of the wave called?
The trough
Increasing the energy of the wave will increase its ???
Amplitude
What is the amplitude of a wave?
The largest displacement of a particle in a wave from its centre of oscillation
What is the wavelength of a wave?
The distance between two matching points on neighbouring waves
What is the period of a wave?
The time taken for a wave to go through one complete oscillation
Name 3 examples of longitudinal waves
- Sound waves
- Ultrasound waves
- Seismic P-waves
What is a compression (waves)?
A region of high pressure due to particles being closer together
What is a rarefaction?
A region of low pressure due to particles being spread further apart
Name 3 examples of transverse waves?
- Electromagnetic waves
- Seismic S-waves
- Water waves
What is The Wave Equation?
Wave velocity = frequency x wavelength
What do waves transfer?
Energy but not matter
Which of these can sound travel through?
Solids, Liquids, Gases, A Vaccum
All except a vacuum, since there are no particles for the wave to carry vibrations
