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

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

Title: Waves 06 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)

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

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

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

Watch and enjoy!! Pit stop Progress – what about this? First 40 seconds only http://www.youtube.com/watch?v=BjULrwbQJzM Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

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

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

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

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

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

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

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

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

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

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

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

All EM waves: Travel at the speed of light (300 000 km/s or 3 00 000 000 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