1. ARE ALMOST ALMOST ALWAYS ALWAYS NOT RIGHT
Use the RED and GREEN filters to decipher the
messages below:
GIRLS
BOYS
ARE ALMOST ALMOST ALWAYS
ALWAYS
NOT
RIGHT

3. Title: Waves 06 August 2018 X rays Gamma Rays Ultra violet
Sort these from low energy to high energy
X rays
Gamma Rays
Ultra violet
Visible light
Radio
Microwave
Infra Red

4. Title: Waves August 2018
Today we will be learning about waves. By the end of the lesson you will be able to:
Explain what physicists mean by waves, giving examples of each type and uses for electromagnetic waves (Level 5)
Draw a transverse wave and correctly label amplitude, wavelength and frequency, giving the appropriate units for each term (Level 6)
Use key ideas about waves to explain why a candle flame moves when placed in front of a speaker (Level 7)

5. Title: Waves 06 August 2018 What types of waves are there?
Slinky demonstration
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

6. Title: Waves 06 August 2018 Draw a longitudinal wave into your book.
Label a point of compression
Label a point of rarefaction
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

7. Pit stop Progress – Can you explain this?
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

8. Watch and enjoy!! Pit stop Progress – what about this?
First 40 seconds only
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

9. Title: Waves 06 August 2018 Draw a transverse wave into your book.
Remember a transverse wave oscillates at right angles to its direction of travel
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

10. Wave Motion Wave motion as shown as a snapshot in time.
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

11. Wavelength
This is the distance (usually in metres) between one peak and the next.
In other words it is the distance of one complete cycle of the wave.
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

12. Amplitude
This is the distance from zero displacement to a peak or zero displacement to trough.
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

13. Frequency The number of complete waves that pass in one second.
Measured in Hertz (Hz for short.)
Use absorb and get boys to count for a minute then calculate – works out at about 1.6ish per second
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

14. Waves of various frequencies.
Which has the highest frequency?
The lowest?
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

15. Energy and Frequency
High energy EM waves have short wavelength and_______ frequency. Low energy EM waves have _______ wavelength and _______ frequency.
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

16. Drawing Waves
Draw the wave produced by a load sound Draw the wave produced by something with a medium volume, with a high pitch. Draw the wave produced by a quiet sound with a low pitch.
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

17. Uses of EM waves Wave type Use of Gamma X Ray UV Visible IR Microwave
Radio
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

18. Electromagnetic Spectrum
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

19. Uses we have found for EM radiation include…
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

20. All EM waves:
Travel at the speed of light ( km/s or m/s.)
Can be refracted
Transmit energy from one place to another
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary