1. sound, light*,water seismic (earthquakes)
Waves and Energy
sound, light*,water
seismic (earthquakes)

2. Draw a mind map for waves and energy

3. Describe the characteristics of the wave.
Mexican Wave clip

4. and sound waves from a speaker
Properties of Waves
A wave is a transfer of energy from one point to another with out the transfer of material between the two points.
and sound waves from a speaker

5. Main properties of waves
Other terms
Period (T) units seconds (s), frequency (f) units hertz (Hz)
speed (v) units metre/second (m/s) Text Pages

6. Calculations Frequency = 1/period f = 1/T unit Hertz (Hz)
Speed = wavelength x frequency
v = l f unit metre/second (m/s)
Assume speed in air 340 m/s unless told other
wise.

7. Transverse Waves water waves, light waves*, some seismic waves
In groups role model the movement of particles in a
transverse wave e.g. water wave
Creating a transverse wave
Text Page 6 – 8, 27

8. Transverse Wave

9. Longitudinal Wave sound waves and some seismic waves
compression
rarefaction
sound waves and some seismic waves
In groups role model the movement of particles in a
longitudinal wave e.g. sound wave
Creating a longitudinal wave
Text Pages 9 – 10,27

10. Tuning Forks Task : Strike each tuning fork on the bench and
comment on its sound (pitch, loudness and intensity)
Perceptive and subjective qualities of sound.
Pitch is how high or low a sound seems
(lion low, bird high)
The louder the sound the
more energy the sound
wave has.
Intensity is also linked to
how high and often a wave
occurs.
Text Page

11. Key word links
amplitude frequency loudness Pitch period wavelength Intensity

12. Speed of Sound Material Speed of Sound estimate Space Vacuum No sound
Speeds of Sound
Speed of Sound
Material
Speed of Sound
estimate
Space Vacuum
No sound
Rubber at 20oC
60 m/s
Air at 40oC
355 m/s
Air at 20oC
343 m/s
Water at 20oC
1500 m/s
Glass
4540 m/s
Steel at 20oC
4800 m/s
Aluminum
5000 m/s
Text book page 39

13. Speed of sound
Explain why the speed of sound is not constant (the same) for all materials.

14. Draw waves to represent the following sounds
Soft low frequency sound
Loud high frequency sound
Short wavelength loud sound

15. Describe the two waves below

16. Sound from a Speaker
Components of a speaker
Loud speaker simulation

17. Sound intensity level and distance
Sound waves spread out in all directions
decreases intensity.

18. Complete Review Properties of Waves
Draw wave diagrams where needed
Show all working
Remember to place units on calculations
Explanations may be in point form.

19. Hearing Frequencies at which a range of animals can hear
Ears work in a similar way to
speakers.

20. Interaction of waves with boundaries
Reflection
Task
Use light boxes to prove this rule
Prove: angle of incidence = angle of reflection
Assessment: Criteria F

21. Interaction of waves with boundaries
Refraction Bending and change of speed of waves as they pass from one medium to another. Task Investigate light waves moving from air to plastic. Assessment criteria D and E

22. Summary of Interaction between boundaries
Lines represent rays of light

23. How does Homer see the box?

24. Reflection Diffuse Reflection Specula Reflection
Smooth surfaces the waves
are not spread out
Irregular surface means the
waves are spread out

25. Electromagnetic Waves
An electromagnetic wave consists of vibrating electric and magnetic fields that move through space at the speed of light.
The smaller the wavelength the greater their energy
These waves can transfer energy with out a medium to travel through.
You are only expected to know the basics structure and chacteristics of EM waves.
Chapter 3 pages 70 – 71,

26. Page
Page 74

27. Waves around us and their uses
Sound
Microwaves
Sound is used to find objects and depth
of oceans
Sound barriers use the ideas of reflection to
Stop sound pollution
Microwaves are used in modern
Communication
Fibre optics instead of using wires
Similar many controls around the house use
Microwaves to operate systems.
Page 62
Pages

28. Waves and our atmosphere
Different wavelength can be used for different types of communication
from contacting ET to phoning home.

29. Waves and Health
Ultra sound 20 kHz used in the same way as echo sounding.
High frequency waves provide heat to help healing.
Page 63
X rays are used to to
obtain images of solids
for example bones
Page 79

30. Review Questions from Text
Chapter 1 Questions
Section 1 Assessment page 10 Question 2 C
Section 2 Assessment page 15 Questions 1 & 2
Section 3 Assessment page 23 Questions 1 b
Chapter 1 Review and Assessment Review Key terms Question 1 – 4
Chapter 1 Review and Assessment Question 9, 11, 12, 16, 17, 18, 19,
Chapter 1 Standardised test prep Questions 1- 3, 6

31. Review Questions from Text
Chapter 2 Questions
Section 1 Assessment page 41 Question 1, 2 b,c,
Section 2 Assessment page 47 Questions 1 a, b, 2 a, b,
Section 5 Assessment page 63 Questions 1 c, 2 a, b, c
Chapter 2 Review and Assessment Review Key terms Question 2, 5
Chapter 2 Review and Assessment Question 11, 13, 16, 199, 11, 12, 16, 17, 20, 21, 23, 25
Chapter 2 Standardised test prep Questions 1, 2, 4,

32. Review Questions from Text
Chapter 3 Questions
Section 1 Assessment page 73 Question 1 a, b
Section 2 Assessment page 81 Questions 1 a, c, 2 a, b, c
Chapter 3 Review and Assessment Review Key terms Question 1, 3,
Chapter 2 Review and Assessment Question 11, 14, 25, 26, 27
Chapter 2 Standardised test prep Questions 3, 5,

33. Review Questions from Text
Chapter 4 Questions Section 2 Assessment page 118 Questions 1 a,b,c Section 2 Assessment page 123 Questions 1b Chapter 4 Review and Assessment Review Key terms Question 2, Chapter 2 Review and Assessment Question 16 Chapter 2 Standardised test prep Questions 1, 3,