Waves Flashcards
What is one way energy may be transferred between stores?
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Waves
What are waves?
OSCILLATIONS (the repeated fluctuations above and below the same position) or VIBRATIONS about a REST POSITION
What are mechanical waves?
Cause OSCILLATIONS of PARTICLES in a SOLID, LIQUID or GAS and MUST have a MEDIUM to TRAVEL THROUGH
What are electromagnetic waves?
Cause OSCILLATIONS in ELECTRICAL and MAGNETIC FIELDS
What are longitudinal waves?
VIBRATIONS which are PARALLEL to the DIRECTION of WAVE TRAVEL
What are transverse waves?
VIBRATIONS which MOVE at RIGHT ANGLES to the DIRECTION of WAVE TRAVEL
Why can waves be used to transfer energy?
What are some examples of transverse waves?
-Light
-Water Waves
-Waves on a string
What are some examples of longitudinal waves?
-Sound Waves
-Shock waves
-Waves in a Spring
What is one thing waves don’t transfer?
Matter (subatomic particles, atoms etc)
What is meant by rest position?
The UNDISTURBED POSITION of PARTICLES or FIELDS where they ARE NOT VIBRATING
What is meant by the displacement of a wave?
The DISTANCE that a CERTAIN POINT in the MEDIUM has MOVED from its REST POSITION
What is meant by the peak of a wave?
The HIGHEST POINT ABOVE a REST POSITION
What is meant by the trough of a wave?
The LOWEST POINT BELOW the REST POSITION
What is meant by the amplitude of a wave?
The MAXIMUM DISPLACEMENT of a POINT of a WAVE from its REST POSITION
What is meant by the wavelength of a wave?
The DISTANCE COVERED by a FULL CYCLE of the WAVE which is USUALLY MEASURED from PEAK to PEAK
What is meant by time period?
The TIME TAKEN for a FULL CYCLE of the WAVE which is USUALLY MEASURED from PEAK to PEAK or TROUGH to TROUGH
What is meant by frequency?
The NUMBER of WAVES PASSING a POINT EACH SECOND
What do longitudinal waves show?
What is the difference between longitudinal and transverse waves?
What are some examples of evidence that longitudinal waves transport sound waves through air and not the air itself?
What are some examples of evidence that transverse waves don’t move the water itself when it ripples?
Ask AI to generate a wave motion image and describe it in terms of amplitude, wavelength, frequency and period
(BLURT QUESTION)
How is the unit for period?