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WAVES. KEY TOPICS DEFINITION OF WAVES WAVE PARAMETERS – f, T, A, l PHYSICAL PROPERTIES WAVE SPEED WAVE TYPES SUPERPOSITION & STANDING WAVES DOPPLER EFFECT & BOW WAVES. WAVES. DEMO. WAVE. THE FOLLOWING DEMO SHOWS THAT A WAVE ON A SLINKY CARRIES ENERGY. DEMO. WAVE PARAMETERS. •.
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WAVES • KEY TOPICS DEFINITION OF WAVES WAVE PARAMETERS – f, T, A, l PHYSICAL PROPERTIES WAVE SPEED WAVE TYPES SUPERPOSITION & STANDING WAVES DOPPLER EFFECT & BOW WAVES
WAVES • DEMO
WAVE • THE FOLLOWING DEMO SHOWS THAT A WAVE ON A SLINKY CARRIES ENERGY. • DEMO
WAVE PARAMETERS • AMPLITUDE • WAVELENGTH • FREQUENCY or PERIOD
DEMONSTRATION • WAVE PARAMETERS CAN BE DEMONSTRATED WITH A ROPE
FREQUENCY • THE RATE OF VIBRATION OF THE MEDIUM OR SOURCE • SYMBOL - f • UNIT - Hz
PERIOD • THE TIME FOR ONE COMPLETE VIBRATION OF THE MEDIUM (OR THE SOURCE) • T = 1 / f
PHYSICAL PROPERTIES OF WAVES WHEN A WAVE ENCOUNTERS AN BOUNDARY BETWEEN TWO MEDIA THE ENERGY CAN BE: REFLECTED TRANSMITTED ABSORBED
WAVELENGTH & FREQUENCY THE FREQUENCY AND WAVELENGTH ARE INVERSELYPROPORTIONAL DEMO
SPEED OF A WAVE • THE FOLLOWING DEMO SHOWS HOW TO CALCULATE THE SPEED OF A WAVE • DEMO
DEMO DEMO
WATER WAVES • WAVES ON THE SURFACE OF WATER ARE A COMBINATION OF TRANSVERSE AND LONGITUDINAL • DEMO
ACTIVITY USE A SLINKY TO DEMONSTRATE: WAVES TRANSMIT ENERGY FREQUENCY & PERIOD AMPLITUDE WAVELENGTH WAVES CAN BE REFLECTED WAVES CAN BE TRANSMITTED WAVES CAN BE ABSORBED THE SPEED CHANGES IF THE MEDIUM CHANGES TRANSVERSE AND LONGITUDINAL WAVES