Basic Waves Flashcards
Waves transfer __________________ via ____________________. Waves do not transfer matter.
Energy, Oscillation
A Mechanical wave is a wave which needs a ____________________ โ a substance that oscillates to allow the transfer of energy.
Medium
An example of a mechanical wave is _____________ which requires air molecules to vibrate to transfer the wave.
_________________________waves are not mechanical as they do not need matter to support them.
Sound, Electromagnetic
_________________________ is one that appears to spread out from their source.
A Mechanical wave
Progressive waves transfer ____________________ via oscillations without transferring ___________________.
Energy, Matter
There are two types of waves, ________________________and ______________________________waves.
Longitudinal, Transvers
Which of these waves do you think are mechanical waves?
Wave type
Ultrasound
Infrared
Water
Seismic
Radio
Wave type, Yes
Ultrasound, No
Infrared, Yes
Water, Yes
Seismic, Yes
Radio, No
Explain why can sound not travel in space?
- Sound is a mechanical wave
- Mechanical waves need a medium to travel through
- Space is a vacuum / no air for sound to move through / no medium
These are waves in which the oscillations of the particles is _________________________to the direction of movement of the wave energy
Perpendicular
These are waves in which the oscillations of the particles are ________________________to the direction of movement of the wave energy.
Parallel
This wave is generated by squashing particles together and then stretching them apart repeatedly.
The areas of higher pressure are _____________________.
The areas of low pressure are ________________________________.
Compressions, Rarefaction
Waves transfer ___________ from one place to another.
Energy
Waves in which the vibrations are perpendicular to the propagation of the wave are _____________________.
Transverse Waves
Waves in which the vibrations are parallel to the propagation of the wave are ___________________.
Longitudinal Waves
Waves in which the vibrations are parallel to
the propagation of the wave are ______________________.
Rarefaction
Longitudinal waves show areas of _________ where the particles of the wave are close together.
Compression
What is definition of Displacement?
The distance and direction from the equilibrium position.
What is definition of Amplitude?
The magnitude of the maximum displacement.
What is definition of Frequency?
the number of complete cycles per second
What is definition of Wavelength?
the distance between a point on a wave and the same point on the next wave.
What is definition of Time period?
The time taken for one complete oscillation.
What is definition of Wave speed?
rate of movement of a wave
What is the equation of wave?
๐ฃ = ๐๐
What is the equation of frequency?
๐ = 1/๐
What is a spectrum?
A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum.
Add arrows to the right hand side of the table
to show the direction ofโฆ
โ Increasing frequency
โ Increasing wavelength
โ Increasing energy
An oscilloscope is a bit like an?
displacement time
graph
