1. What colour would each part look if you were looking through a yellow filter?

2. Title: Waves 04 September 201804 September 2018
Sort these from low energy to high energy
X rays
Gamma Rays
Ultra violet
Visible light
Radio
Microwave
Infra Red

3. Title: Waves 04 September 201804 September 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 (D)
Draw a transverse and longitudinal wave and correctly label amplitude, wavelength and frequency, giving the appropriate units for each term where appropriate (S)
Use key ideas about waves to explain why a candle flame moves when placed in front of a speaker (C)

4. Waves Watch the film clip:
At the end you will need to tell me all you can about the two different types of waves;
Transverse
Longitudinal
What do waves transfer from one place to another?

5. Title: Waves 04 September 201804 September 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 04 September 201804 September 2018
Draw a longitudinal wave into your book.
Label a point of compression
Label a point of rarefaction
Which waves are longitudinal waves?
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. Title: Waves 04 September 201804 September 2018
Draw a transverse wave into your book.
Remember a transverse wave oscillates at right angles to its direction of travel
Which waves are transverse waves?
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary

9. 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

10. 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

11. 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

12. Period
The time taken for one complete wave to pass a point.. Measured in Seconds (s)
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

13. Frequency
The number of complete waves that pass in one second. Measured in Hertz (Hz for short.) Can you work out the relationship between Period & Frequency?
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?
Which has the longest period?
The shortest?
Today we are learning the names, types and uses of waves, and explaining some uses using key vocabulary