Engage Complete as much of the “What are Waves” sheet as you can. Leave what you can’t do blank. You have 10 minutes.

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Presentation transcript:

Engage Complete as much of the “What are Waves” sheet as you can. Leave what you can’t do blank. You have 10 minutes

Learning Objectives 1. R-A-G your understanding of today’s specification points 2. Highlight the key words START OF LESSON END OF LESSON 1.12 Describe that waves transfer energy and information without transferring matter 1.13 Use the terms of frequency, wavelength, amplitude and speed to describe waves 1.14 Differentiate between longitudinal and transverse waves by referring to sound, electromagnetic and seismic waves 1.15 Use both the equations below for all waves: v = f x λ v = x /t

Learning Objectives 1. R-A-G your understanding of today’s specification points 2. Highlight the key words START OF LESSON END OF LESSON 1.12 Describe that waves transfer energy and information without transferring matter 1.13 Use the terms of frequency, wavelength, amplitude and speed to describe waves 1.14 Differentiate between longitudinal and transverse waves by referring to sound, electromagnetic and seismic waves 1.15 Use both the equations below for all waves: v = f x λ v = x /t

Write today’s date and title in your book... Waves 09/11/2018 c/w P1.5

Independent Study Learn quiz set 1 -3 Revise for test on topic 1 Due: Fri 26th

So waves transfer ENERGY without transferring MASS. Explore What are the DIFFERENCES and SIMILARITIES between throwing the ball and talking to you? “I transfer energy” “I transfer mass (stuff)” “I transfer energy too” “I DON’T transfer mass (I just make it vibrate)” So waves transfer ENERGY without transferring MASS.

Explore Longitudinal e.g. sound Transverse e.g. light Vibrations are PARALLEL to wave direction e.g. sound Transverse Vibrations are PERPENDICULAR to wave direction e.g. light

Explain Crest Wavelength Amplitude Trough Higher Frequency Lower Frequency

Explain The speed of a wave is calculated by: Speed = distance time v = x t Distance must be in m Time must be in s Speed will be in m/s

Example If a wave carries a surfer 120m in 60 seconds, what is the speed of the wave?

Extend The speed of a wave is ALSO calculated by: Speed = Frequency x Wavelength v = f x λ Frequency must be in Hz Wavelength must be in m. Speed will be in m/s

Extend A wave has a frequency of 2Hz and a wavelength of 8m, what is its speed?

Extend A wave has a wavelength of 10m, and travels at 50m/s, what is its frequency?

R-A-G your understanding of today’s specification points Evaluate R-A-G your understanding of today’s specification points START OF LESSON END OF LESSON 1.12 Describe that waves transfer energy and information without transferring matter 1.13 Use the terms of frequency, wavelength, amplitude and speed to describe waves 1.14 Differentiate between longitudinal and transverse waves by referring to sound, electromagnetic and seismic waves 1.15 Use both the equations below for all waves: v = f x λ v = x /t What is YOUR next step?