Flashcards
WAVES
Cards in this deck (7)
- 1WHAT ARE WAVES?Waves are oscillations of particles or electromagnetic fields. These oscillations transfer energy in the direction the waves travel. Waves come in 2 forms: mechanical and electromagnetic waves. Mechanical waves are transmitted by the oscillations of particles in a medium whereas electromagnetic waves involve the oscillations of electromagnetic fields; they do not involve particles.
- 2MECHANICAL AND ELECTROMAGNETIC WAVES COM IN 2 FORMS - WHAT ARE THEY?Mechanical waves and electromagnetic waves fall into 2 groups: transverse waves and longitudinal waves. In transverse waves particles or EM fields oscillate at right angles to the direction of the waves motion. All electromagnetic waves are transverse waves. In longitudinal waves particles oscillate in the direction of the waves motion. Sound waves and seismic-P-waves are examples of longitudinal waves.
- 3WHAT ARE WAVE PARAMETERS?Wave parameters are made up of 5 important wave features: amplitude, wavelength, period, frequency and velocity.
- 4WHAT IS AMPLITUDE?Amplitude is the maximum disturbance of particles or field from a rest position.
- 5WHAT IS A WAVELENGTH?Wavelength is the distance between successive crests or troughs.
- 6WHAT IS A PERIOD?Period is the time taken for a wave to travel a wavelength.
- 7WHAT IS FREQUENCY?Frequency is the number of complete waves passing a point per second. F is related to period(T) by f=1/T
Information
- Description
- ncea level2 SCIENCE (WAVES) Flashcards on WAVES, created by daleenmehrez1 on 15/09/2014.
- Created by
- daleenmehrez1
- Views
- 11
- Rating
More on Wave properties and equations