How can we see and hear Adele? http://www.youtube.com/watch?v=qemWRToNYJY Title: Physics Assignment: WAVES (P3)
Mar 26, 2015
How can we see and hear Adele?
http://www.youtube.com/watch?v=qemWRToNYJY
Title: Physics Assignment: WAVES (P3)
Lesson objectives
For a PASS:
1. Be able to state the 2 different types of waves and describe how they travel.
2. Be able to label the different parts of each wave.
Your taskYou will be asked to move the Slinky in 2 ways.
1.The first movement will be like the way in which LIGHT travels (how the lights travel from the bulbs to Adele)
2.The second movement will be like the way in which SOUND travels (how the lights travel from Adele to your ears)
• You must look at how the Slinky travels for each movement and draw a diagram in your books.
Transverse waves• Light and other types of electromagnetic
radiation are transverse waves. • Water waves are also transverse waves. In
transverse waves, the vibrations are at right angles to the direction of travel.
Longitudinal waves• Sound waves and waves in a stretched spring
are longitudinal waves. • In longitudinal waves, the vibrations are along
the same direction as the direction of travel.
Have you achieved your PASS for this task?
1. Be able to state the 2 different types of waves and describe how they travel.
2. Be able to label the different parts of each wave.
1.All electromagnetic waves travel at the same speed through space (the speed of light).
2.Gamma rays, X-rays, Ultra-violet waves, Light, Infra-red rays, Microwaves, and Radio waves are all electromagnetic waves with different wavelengths.
3.Some substances absorb EM waves, some reflect them and others transmit them.
Electromagnetic WavesElectromagnetic WavesElectromagnetic WavesElectromagnetic Waves
Electromagnetic Waves
Electromagnetic WavesElectromagnetic WavesElectromagnetic WavesElectromagnetic Waves
Electromagnetic Waves
Radio WavesRadio WavesRadio WavesRadio Waves
Radio waves
Radio WavesRadio WavesRadio WavesRadio Waves
Radio waves
MicrowavesMicrowavesMicrowavesMicrowaves
Microwaves
MicrowavesMicrowavesMicrowavesMicrowaves
Microwaves
Infrared radiationInfrared radiationInfrared radiationInfrared radiation
Infrared radiation
Visible lightVisible lightVisible lightVisible light
Visible light
EndoscopeEndoscopeEndoscopeEndoscope
Endoscope
1.X-rays and Gamma rays pass through soft tissues but some is absorbed by cells
2. High doses of UV rays, X-rays and Gamma radiation can kill cells. Smaller doses can causes cells to become cancerous
Dangerous radiationDangerous radiationDangerous radiationDangerous radiation
Dangerous radiation
Ultra-violet radiationUltra-violet radiationUltra-violet radiationUltra-violet radiation
Ultra-violet radiation
X-raysX-raysX-raysX-rays
X-rays
Making X-raysMaking X-raysMaking X-raysMaking X-rays
Making X-rays
Gamma radiationGamma radiationGamma radiationGamma radiation
Gamma radiation
WordsearchWordsearchWordsearchWordsearch
Wordsearch
QuizQuizQuizQuiz
Quiz
Title: Comparing frequencies of different sounds
• Your task today: read the worksheet, complete the graph (using MALT) and all questions.