General+Wave+Properties+(Chapter+13)

At the end of this chapter students would be able to:


 * Describe wave motion using vibrations in ropes and springs, or waves in a ripple tank
 * Understand that waves transfer energy without transferring matter
 * Compare transverse and longitudinal waves and give suitable examples of each
 * Define the speed, frequency, wavelength, period and amplitude of waves
 * State what is meant by the term wavefront
 * Recall and apply the relationship velocity = frequency x wavelength to solve related problems
 * Describe the effects of refraction, reflection and depth changes on waves in a ripple tank

Resources:


 * 1. Waves transfer Potential and Kinetic Energy when they travel from the source. See tsunami 2006 **

media type="youtube" key="dgD4Xfg6w6I" height="344" width="425"


 * 2. Waves transfer energy without transferring matter. **

- Transverse wave [] - Longitudinal wave []


 * 3. Examples of waves**

__Transverse wave__: light, radio waves __Longitudinal wave__: sound wave Look at the air particles' vibration when sound is produced



4. Ripple Tank

media type="youtube" key="JXaVmUvwxww" height="385" width="480" Take note of the dark region and light region. What are they?


 * Discussion Question - do these in your own page**

__Lesson 1__

1. State what is being transferred by the waves. 2. State whether the following wave is transverse or longitudinal A B

C



3. Give examples of each type of waves. Transverse wave: Longitudinal wave

4. Explain the difference between transverse and longitudinal waves.

__Lesson 2__

1. Fill in the blanks

(i) (ii) (iii) (iv)

2. Refer to the displacement-distance graph below and answer the following questions.

(i) What type of wave is this? (ii) Which points are the crests and which points are the trough? (iii) Which point is point C in phase with? (iv) What is the amplitude of the wave? (v) What is the wavelength of the wave?