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Oscillations lesson objectives

Yr 9 IGCSE waves lesson objectives

Damian King

on 7 September 2013

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Transcript of Oscillations lesson objectives

Waves Electromagnetic Spectrum Describing a wave Wave Equation 3.2 describe longitudinal and transverse waves in ropes, springs and water where appropriate 2) Does it need to be re-arranged? 4) Write out the answer
5) Add a unit Can you use a triangle to help? Spark 3)Substitute in values 1) Write the Equation you need to use (cc) image by nuonsolarteam on Flickr 3.3 state the meaning of amplitude, frequency, wavelength and period of a wave Oscillations 5 steps to Answering an equation based Physics problem Speed of sound = 330m/s 3.5 recall and use the relationship between the speed, frequency and wavelength of a wave: 3.4 recall that waves transfer energy and information without transferring matter 3.28 describe how to measure the speed of sound in air Sound Waves 3.6 use the relationship between frequency and time period: 3.7 use the above relationships in different contexts including sound waves and electromagnetic waves 3.27 recall that the frequency range for human hearing is 20Hz – 20 000 Hz 3.31 appreciate that the pitch of a sound depends on the frequency of vibration of the
source 3.32 appreciate that the loudness of a sound depends on the amplitude of vibration. 3.10 understand that light is part of a continuous electromagnetic spectrum which includes radio, microwave, infrared, visible, ultraviolet, x-ray and gamma ray radiations and that all these waves travel at the same speed in free space

3.11 recall the order of the electromagnetic spectrum in decreasing wavelength and increasing frequency, including the colours of the visible spectrum 3.12 recall some of the uses of electromagnetic radiations, including: 3.13 recall the detrimental effects of excessive exposure of the human body to electromagnetic waves, including: microwaves: internal heating of body tissue
infra-red: skin burns
ultraviolet: damage to surface cells and blindness
gamma rays: cancer, mutation. radio waves: broadcasting and communications
microwaves: cooking and satellite transmissions
infrared: heaters and night vision equipment visible
light: optical fibres and photography
ultraviolet: fluorescent lamps
x-rays: observing the internal structure of objects and materials and medical applications
gamma rays: sterilising food and medical equipment 3.29 understand how an oscilloscope and microphone can be used to display a sound wave

3.30 use an oscilloscope to determine the frequency of a sound wave Mo Farah won the 10,000m Olympic final in London 2012 He had to run 25 laps of a 400m athletics track. For ease lets say he ran each lap in 60s.
What was his speed?

What was the time period for one lap?

What was his frequency?
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